A man is taken into custody by uniformed Secret Service Police on Pennsylvania Avenue outside the White House on Monday, Sept. 16, 2013, in Washington. The Secret Service arrested the man for tossing lit firecrackers over the White House fence. (AP Photo/ Evan Vucci)
WASHINGTON (AP) - The Secret Service has arrested a man for tossing firecrackers over a fence at the White House.
A federal law enforcement official says the shoeless man, later identified as Alexander Sahagian, was immediately arrested Monday.
An Associated Press photographer heard what sounded like two gunshots outside the White House, which triggered a lockdown of the complex.
Three uniformed Secret Service officers arrested Sahagian shortly after. They say he will likely be charged with "illegally throwing a projectile."
The incident happened just hours after at least one suspect opened fire inside the Washington Navy Yard, killing at least 12 people. The gunman was also killed.