According to Sky News, someone could be heard saying, "My God they're dead" in footage. Inquisitr reports:
"The Boston Marathon explosions reportedly did not take place simultaneously. One witness associated with the race stated that dozens of people have been seriously injured. During the live news footage, a man can be heard saying, 'All my God … they are dead' when looking about victims beneath a barrier."
Blogger Emily Zanotti tweeted of the explosions and reported death count, "Three dead so far, likely more. Hit at a time when Boston reports largest number of runners crossing finish line."
UPDATE: Boston police officials told CNN two died in the explosion. Keep checking the blog for further updates.