White House firecracker thrower arrested hours after Navy Yard shooting

White House firecracker thrower: With the capital on high alert after the earlier shootings, reaction to the firecrackers was immediate, with some people tweeting that shots had been heard.

The American flag flies at half-staff above the White House Tuesday morning after President Barack Obama made the proclamation to honor the victims of the shootings at the Washington Navy Yard, Sept. 17, in Washington.

Pablo Martinez Monsivais/AP

September 17, 2013

A man threw firecrackers over the White House's north fence on Monday, just hours after a shooting rampage in the U.S. capital in which 13 people died, the U.S. Secret Service said.

Uniformed agents sealed off the area in front of the presidential mansion and ordered journalists in the driveway in front of the West Wing to move inside the building.

With the capital on high alert after the earlier shootings, reaction to the firecrackers was immediate, with some people tweeting that shots had been heard.

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"There have not been shots outside the White House," said Secret Service spokesman Ed Donovan.

Video of the incident showed agents apprehending a man dressed in shorts and a short-sleeve shirt before leading him away.

The man, identified as Alexander Sahagian, has been arrested, a law enforcement official said. The charge was likely to be throwing projectiles.