Dzhokar Tsarnaev, the 19-year-old suspect in the Boston Marathon bombings, was captured alive Friday night on a boat in the backyard of a residence by authorities after a lengthy, citywide manhunt.
Shortly after officials lifted a "stay indoors" order for Boston-area residents, gunshots were heard Friday evening in a Watertown, Massachusetts, neighborhood, which led to a heavy police response. An official who spoke on condition of anonymity told CNN that authorities had "engaged" the suspect.
Authorities cornered Dzhokar Tsarnaev and used flash bang grenades to disorient him. Authorities called on Tsarnaev to surrender peacefully. The details of Tsarnaev's capture are not yet known, but authorities say Tsarnaev was taken away by ambulance.
Crowds that had gathered in the streets cheered loudly after they heard news that the bombing suspect was caught. Boston police also tweeted saying, "The terror is over. And justice has won."
Tsarnaev's capture capped off a day, which started with overnight violence in the Boston area. After the FBI released images Thursday of the two bombing suspects -- 26-year-old Tamerlan Tsarnaev and 19-year-old Dzhokar Tsarnaev -- both suspects were seen at a convenience store.
Boston police say the suspects bought gas and sometime after that, one of them fatally shot Sean Collier, a Massachusetts Institute of Technology police officer in Cambridge, Massachusetts, as he sat in his car, according to a statement from the Suffolk County District Attorney's Office.
Read more: Boston manhunt: Timeline of major events
Authorities say Tamerlan and Dzhokar Tsarnaev then hijacked a car at gunpoint in Cambridge, telling the driver they were the Boston Marathon bombs. A law enforcement source told CNN that the driver was able to escape unharmed at a gas station about a half-hour later. Police were called to respond to the carjacking and were led on a chase of the two suspects through Watertown, Massachusetts.
The suspects reportedly used explosives against police as they were being chased. When police responded with gunfire, Tamerlan Tsarnaev was wounded. Tamerlan Tsarnaev later died at Beth Israel Hospital. He had bullet wounds and injuries that appear to be from an explosion. Police say Dzhokar Tsarnaey fled from the scene on foot after abandoning the vehicle.
An officer, Richard H. Donohue Jr., was wounded in the shootout and taken to a hospital, a transit police spokesman said Friday. Donohue's condition is not yet known.
Residents of Boston and surrounding areas have been urged to stay indoors. The city has shut down mass transit and some streets as the search continues for Dzhokar Tsarnaev.
Read more: Boston on edge: The manhunt in photographs
Stay tuned to HLN and HLNtv.com for more details on this developing story.
8:58 p.m. ET: Another tweet from Boston police.
8:45 p.m. ET: Tweet from Boston police
8:40 p.m. ET: CNN has learned the FBI took three people -- two men and a woman -- into custody in questioning on Friday in connection with the bombings case.
8:35 p.m. ET: Here is a picture of the residence and boat where bombing suspect Dzhokar Tsarnaev is cornered.
8:10 p.m. ET: Law enforcement official close to the investigation tell CNN they believe Dzhokar Tsarnaev is cornered on a boat in the backyard of a residence.
7:55 p.m. ET: Flash bang grenades have been heard in the area, where the suspect is believed to be hiding, officials tell CNN.
7:25 p.m. ET: A FBI official told CNN that agents talked with Tamerlan Tsarnaev in 2011 at the request of a foreign government, who suspected he may have ties to extremist groups. The official said the FBI concluded there was no "derogatory information" found and the matter was concluded.
7:10 p.m. ET: CNN's Deb Feyerick said sources have told her that police may have cornered the suspect, Dzhokar Tsarnaev, in a Watertown neighborhood. She said police are moving toward a group of houses and using tear gas.
7:03 p.m. ET: Tweet from Boston police.
6:58 p.m. ET: Police rush into Watertown neighborhood after gunshots heard in the area.
6:13 p.m. ET: Alben says authorities still believe Tsarnaev is still in Massachusetts. He also pleaded for Tsarnaev to turn himself in.
6:08 p.m. ET: Massachusetts Gov. Deval Patrick said the "stay indoors" order has been lifted for residents in the Boston area, but he urged residents to remain vigilant. Patrick also said mass transit will resume immediately in the area.
6:07 p.m. ET: Massachusetts State Police Col. Timothy Alben says "we do not have an apprehension of our suspect this afternoon, but we will have one."
4:11 p.m. ET: Fifteen police officers were treated at St. Elizabeth's Medical Center for minor injuries sustained in the overnight police activity in Watertown. They have all since been released from the hospital.
3:24 p.m. ET: The Boston Bruins' game against the Pittsburgh Penguins has also been postponed.
3:13 p.m. ET: Anzor Tsarnaev, the suspects' father who lives in Makhachkala, Daghestan, told reporters, "Someone framed them. I don't know who exactly did it. But someone did. And being cowards, they shot the boy dead. There are cops like this."
3:02 p.m. ET: The Boston Red Sox tweeted that today's game at Fenway Park against the Kansas City Royals has been postponed.
2:29 p.m. ET: Boston police now say it's recalling its alert for a car in connection with the bombing suspect. Earlier, authorities say there were looking for a '99 Honda sedan, but they now say they have the vehicle.
Read more: Where are the Tsarnaev brothers really from?
2:25 p.m. ET: National Guard helicopters are on the campus of the University of Massachusetts Darmouth, where authorities say Dzhokar was a student.
2:20 p.m. ET: Authorities are looking for another vehicle in connection with the bombing suspect.
2:06 p.m. ET: Tsarmaeva says her nephews "couldn't have done this."
2:02 p.m. ET: Maret Tsarnaeva, the aunt of the bombing suspects, says Dzhokar is a "smart guy" and "studies well."
1:45 p.m. ET: CNN has learned that Dzhokar Tsarnaev came to the U.S. when he was 8 years old. He became a naturalized U.S. citizen on September 11, 2012. Four years later, his brother, Tamerlan, came to the U.S., but he did not receive a green card.
12:49 p.m. ET: Tweet from Boston police
12:39 p.m. ET: Col. Timothy Alben of the Massachusetts State Police says there will be an controlled explosion in the Cambridge area later this afternoon as police will detonate materials found earlier.
Read more: DA: One suspect killed, second at large
12:33 p.m. ET: Massachusetts Gov. Deval Patrick is urging Boston-area residents to remain inside their homes and keep their doors locked. He said residents are asked not to open their doors except to law-enforcement officials.
11:57 p.m. ET: Here is a high school yearbook photo of Dzhokar Tsarnaev, courtesy of Boston.com.
11:43 a.m. ET : Tsarni said his nephew needs to "ask for forgiveness."
11:36 a.m. ET : Tsarni calls his nephews "losers." Tsarni also urged his nephew to turn himself in.
11:36 a.m. ET : Ruslan Tsarni, the uncle of the bombing suspects, calls the bombings were "an atrocity" and he can't believe that his nephews were involved in this. "We're ashamed," he said. Tsarni has not been in contact with his nephews in years.
11:25 a.m. ET : Authorities say the Honda CRV that was found abandoned nearly an hour ago was present at the time of the overnight carjacking.
11:13 a.m. ET : Suspect's friend tells Carey that the suspect direct messaged him on Twitter. HLN security contributor Mike Brooks asks the friend about the suspect's car. "Sometimes it was how our friends got around - -we used his car," the friend said.
"He was always a little weird about it," when the friend asked him where he lived.
11:08 a.m. ET: HLN's Richelle Carey is conducting an exclusive interview with the bomb suspect's friend live on HLN. "We played video games and soccer together," he says.
He also said that Dzhokhar Tsarnaev, 19, was planning to marry. The suspect, a fellow UMass Dartmouth student, was "apparently ranked" as a wrestler.
11:00 a.m. ET:
10:55 a.m. ET: University of Massachusetts Dartmouth confirms that the suspect still at large is a registered student at the school.
10:50 a.m. ET:
10:47 a.m. ET: Tamerlan Tsarnaev, who authorities have called "Suspect No. 1," was taken to Boston's Beth Israel Deaconess Medical Center, where he died, according to Reuters, which quotes Dr. Richard Wolfe, chief of emergency medicine. "This was a trauma arrest, multiple injuries, probably, we believe, a combination of blast, potentially gunshot wounds," Wolfe told reporters.
10:32 a.m. ET: Police have found an abandoned vehicle -- the gray car they were searching for -- in the Boston area.
10:25 a.m. ET : The name of the MIT police officer who was killed Thursday night after a confrontation with the suspects was Sean Collier, 26, of Somerville, Massachusetts, according to the Middlesex District Attorney’s Office.
10:03 a.m. ET: George McMasters told CNN that he hired "Suspect No. 2," Dzhokhar Tsarnaev as a lifeguard at Harvard some time ago. “I first met him over two years ago. But I deployed to Afghanistan with the Army National Guard. I did not see him over a year. When I returned to work this August, he was no longer on the staff or the schedule.”
9:58 a.m. ET: HLN spoke to Eric Mercado, who is a friend of "Suspect No. 2," Dzhokhar Tsarnaev. Machado said he is shocked at the possibility that his friend could have been involved in a terror attack.
“I didn’t know his close personal family … he didn’t show any malicious, no evidence that would lead any of use to believe he would be capable of something like this,” said Mercado.
9:53 a.m. ET: Authorities say they are searching for a gray Honda CRV in Connecticut.
9:48 a.m. ET: The University of Massachusetts Amherst says "Suspect No. 1" was NOT a student. "Dzhokhar Tsarnaey is not a UMass Amherst student and was never a UMass Amherst student," the university posted on its website. Earlier police said that Tsarnaey, 26, was killed. His younger brother remains at large.
9:26 a.m. ET : Another photo of both suspects together in the crowd from the FBI:
9:25 a.m. ET : The FBI has released new photos of suspect Tamerlan Tsarnaev:
9:24 a.m. ET: The FBI has released new photos of suspect Dzhokhar Tsarnaev:
9:20 ET: Jenn Snively, a resident of Watertown, talked to HLN early Friday about the surreal scene in her neighborhood. She lives less than five miles from the epicenter of police action.
“From my windows in my house, it looks like a regular day outside,” she said. “I can just hear police sirens. I can’t leave the house. There’s no vehicles, no traffic.” Jenn says she was woken up at 3 O’clock Friday by her mother, who frantically urged her to turn on the TV. In the darkness of early morning, her fears were amplified. “I was a lot more scared then,” she said. “When it’s dark outside, it’s a little bit scarier, because you don’t know where anyone is lurking.”
Jenn began texting her friend who lives on a street much closer to the action. “[She] had a SWAT team come in and search her basement,” Jenn said. “And she had woken up at 12:30 a.m. because of all the gunshots behind her house.”
Jenn says the scene is obviously frightening, but it’s made even more bizarre by the fact that Watertown is typically a safe, quiet area. “I’ll be honest, I have not heard a single car drive down the street, other than a police car. There is no one on the roads,” she said. “And it’s like a ghost town. I think everybody is taking [the lockdown] very seriously and they’re respecting the law."
“It’s very serious,” she added. “He’s obviously out to kill, and doesn’t care who is in the way.”
9:12 a.m. ET: Suspects' uncle says, "They do not deserve to live on this earth," according to HLN affiliate WBZ.
9:09 a.m. ET: HLN’s Natasha Curry says law enforcement is very concerned that the suspect may be carrying explosives. TV cameras show police officers with guns drawn surrounding a residence in Watertown.
9:03 a.m. ET:
8:46 a.m. ET: HLN TV coverage shows massive police presence on a street in Watertown and a street in Cambridge.
8:39 a.m. ET : City of Boston told to go home.
8:32 a.m. ET: A 3.5 nautical mile "Temporary Flight Restriction" has been ordered by the FAA over Boston. it is “to provide a safe environment for law enforcement activities.” The area covers from surface to 3000 feet, says the FAA website.
Residents of Boston and surrounding areas have been urged to stay indoors, and the city has shut down mass transit and some streets.
Stay tuned to HLN and HLNtv.com for more details on this developing story.
8:24 a.m. ET: The dead suspect has been identified as Tamerlan Tsarnaev, age 26, and the one still on the loose is Dzhokhar Tsarnaev, age 19. They are from an area near Chechnya, according to police.
Read more: One bombing suspect dead, one on the loose