Police hail 'victory' as Boston bomb suspect captured

Celebrations erupted in Boston as the capture of the remaining marathon bombing suspect was announced in a tweet from police.

In the Watertown neighbourhood where Dzhokhar Tsarnaev, 19, engaged in a firefight with police while hiding out in a parked boat, dozens of people at a police barricade cheered and applauded as law enforcement officers left the scene.

ITV News' Washington Correspondent Robert Moore reports:

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Boston bombs 'remote trigger'

US investigators have revealed the two bombs that went off at the Boston Marathon were detonated with the kind of remote control device used for a toy car.