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.

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Boston remembers Marathon bombings one week on

Seven days after the bomb attacks, residents came together for a minute of silence, during which time some prayed. Credit: APTN

Exactly a week after the Boston Marathon bombings, the city came together to mark a minute's silence in tribute to the victims.

A monk sits at the site of the explosions. Credit: APTN
The explosion site is now covered in floral tributes to those who died. Credit: APTN

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