British runner 'can't believe' what he saw in Boston

Some 347 of the 25,000 taking part in the race were British and several told of the aftermath of the two blasts.

Mike Kendall, from Northampton, tweeted after completing the 26.2 mile race:

Anthony Meenaghan, 21, an architectural technology student from Sheffield Hallam University who is on a work placement in Boston, tweeted