An explosion was reported near the finish line of the Boston Marathon Monday.
Reuters is reporting that the headquarters of the annual event has been locked down after an explosion was reported near the finish line this afternoon.
The following images have been posted on Twitter, showing the scene:
According the Boston Globe, there were dozens injured, although there are conflicting reports regarding the number and scale of injuries at this time.
There is also some uncertainty as to whether there were multiple explosions.
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UPDATE, 3:30 p.m.: Two blasts happened at about 2:50 p.m. near the intersection of Boylston and Exeter streets, according to CNN and local news reports.