Two blasts shook the area near the finish line of the marathon and reports say three are dead, including an 8-year-old, with many injured. That injury toll has been reported as low as 23 and has high as 130.
The man being held in the hospital was caught on videotape
, sources said, carrying multiple back-packs. It was unclear if the man, said to be 20, was injured in the blasts or while being captured.
He is reported
to be cooperative and denies involvement.
It's been confirmed a third blast
of some kind, this one near the John F. Kennedy Presidential Library, has taken place; however, at least one report said this explosion was minor and may not be connected to the others. In that blast there were no injuries reported. There were reports that other explosive devices which had not been detonated had been taken from garbage bins in the city but those reports are not confirmed.
New York and Washington D.C., and London, England, have stepped up their level of security since the blasts. Though reports do say the alleged Saudi Arabian is being held while undergoing care in an undisclosed hospital, police said there have been no arrests made and, as of this writing, have not officially confirmed a suspect.
Note that since this report, Boston police have said they do not now have a