Boston marathon bombs suspect captured

The second Boston bombing suspect, 19-year-old Dzhokhar Tsarnaev, has been captured after he was found hiding under the tarpaulin of a boat parked in a suburban backyard of Watertown. His whereabouts were discovered after a member of the public spotted blood in his garden. Dzhokhar's capture came after a frantic night of violence that left one MIT police officer dead, an MBTA Transit Police officer wounded and an all-day manhunt and house-to-house search by thousands of elite police officers. The dramatic stand-off ended with the 19-year-old being given first aid on the lawn next to the boat before he was taken away in an ambulance at around 8.45pm local time.

Celebrations erupted in Boston as the arrest of the remaining marathon bombing suspect was announced by the police.

At a Friday night press conference, US President Barack Obama promised to seek answers on what had motivated the bombers and whether they had help.

Tsarnaev’s elder brother and ­alleged accom­plice — 26-year-old Tamerlan Tsarnaev, the second suspect in Monday’s Boston Marathon attack — was pronounced dead early Friday morning at Beth Israel ­Deaconess Medical Center,, after suffering shrapnel and bullet wounds in a gunfight with police.

Dzhokhar remains in "serious condition" at Beth Israel Deaconess hospital, said Boston police commissioner Ed Davis.

Boston Police tweeted: "CAPTURED!!! The hunt is over. The search is done. The terror is over. And justice has won. Suspect in custody."

The family of eight-year-old Martin Richard, who died in the bombings, released a statement praising police: "Tonight, our family applauds the entire law enforcement community for a job well done, and trust that our justice system will now do its job."

Martin's mother also sustained brain injuries and his sister lost a leg in the blast.