According to reports, two explosions rocked the finish line at the Boston Marathon about three hours after the marathon winners had crossed the finish line earlier today.
Numerous injuries have been reported, some severe. Some reports indicate at least two fatalities.
While no organization has claimed responsibility for the attack, the President of the United States has been notified and top Administration officials are on standby to determine if the Nation is facing a terror threat.
UPDATE: A third, reportedly controlled, explosion has occurred in Boston.