The suspect in the Boston Marathon bombings was taken into custody Friday night, bringing to an end a massive manhunt in the Massachusetts capital amid warnings the man was possibly armed with explosives.

Law enforcement officials told CNN that authorities have confirmed the man in custody is 19-year-old Dzhokar Tsarnaev, who escaped an overnight shootout with police that left his older brother Tamerlan Tsarnaev -- the other man wanted in the bombings -- dead.

The younger Tsarnaev was in need of undisclosed medical care, the officials said.

After announcing the arrest on Twitter, Boston police tweeted: "CAPTURED!!! The hunt is over. The search is done. The terror is over. And justice has won. Suspect in custody."

The arrest came less than a week after two bombs exploded near the finish line of the Boston Marathon, shocking the nation and leaving a city on edge.

Tsarnaev was cornered late Friday on a boat in a backyard of Watertown, a suburb of Boston.

Authorities "engaged" the man, according to one of the officials who spoke on condition of anonymity, just minutes after authorities indicated during a news conference that a manhunt for the suspect appeared to come up empty.

【新闻快讯】美国波士顿警方刚刚宣布,在逃的波士顿爆炸枪击案嫌犯19岁的焦哈尔·察尔纳耶夫已在警方的全城搜捕行动中被活捉。他的同犯哥哥塔梅兰·察尔纳耶夫昨日已被警方击毙。两人来自俄罗斯车臣。此前,警方在波士顿展开全城搜捕,并将嫌犯围困在沃特敦一座建筑内。15日开始的波士顿马拉松爆炸枪击案已造成至少4死176伤。

根据美国媒体报道,焦哈尔·察尔纳耶夫和哥哥塔梅兰·察尔纳耶夫也是此前在麻省理工学院制造枪击事件的嫌犯,哥哥塔梅兰在随后与警方的交火中被捕后身亡。麻省理工枪击案造成了一名校警死亡。