“Very brave” Secret Service agents stopped a suspect with “multiple weapons” at the White House correspondents’ dinner in Washington on Saturday, U.S. President Donald Trump said after he was moved to the White House in what the pool reporter described as the fasted motorcade in which he had ever traveled.

The suspected attacker’s actions led to a “room that was just totally unified,” the president said. He added that law enforcement is going through the suspect’s home in California. The suspect was described as having a “long gun.”

“He’s a very sick person,” Trump said.