According to reports, there have been two explosions that occurred near the Boston Marathon's finish line and multiple people have been injured.
The site of the explosions was on Boylston Street, and they occurred about 15 seconds apart. The first blast occurred almost right next to the finish line. The second explosion came about a block before the finish line.
Reporters on the scene have reported grave injuries. One report had "at least" a dozen people injured.
More to come . . .