White House correspondents' dinner shooting live updates: Suspect described himself as 'friendly federal assassin' in letter, sources say

President Donald Trump, first lady Melania Trump and other dignitaries are safe after a shooting incident outside the White House Correspondents' Association Dinner Saturday night at the Washington, D.C., Hilton hotel.

The incident took place near the main magnetometer screening area at the event, according to the Secret Service. A suspect, whom law enforcement authorities identified as Cole Allen of Torrance, California, is in custody, officials said.

A Secret Service agent who was wearing an armored vest was struck in the chest, President Trump said at a press briefing following the incident. The Secret Service agent suffered non life-threatening injuries, according to the Washington, D.C., Metropolitan Police Department. No one else was injured in the incident.

A motive for the attack was not immediately known.