$20 million donated to Boston bomb victims

Boston Mayor Tom Menino has revealed $20 million (£13.1 million) has been raised in global donations towards victims of the city's marathon bombing.


Calls for support have been overwhelming. In order to harness the world's generosity we created @onefundboston. #oneboston


I'm proud to announce @onefundboston has now reached $20 million. $5 million was generated by your clicks alone. #oneboston


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.