WASHINGTON (AP) — Two staff members of the Israeli embassy in Washington were shot and killed Wednesday evening while leaving an event at a Jewish museum, and the suspect yelled, “Free, free Palestine” after he was arrested, police said.

The attack sent shockwaves around the world and prompted Israeli missions to beef up their security.

The two victims, a man and a woman, were leaving an event at the Capital Jewish Museum when the suspect approached a group of four people and opened fire, Metropolitan Police Chief Pamela Smith said at a news conference.

The suspect, identified as Elias Rodriguez, 30, of Chicago, was observed pacing outside the museum before the shooting, walked into the museum after the shooting and was detained by event security, Smith said.

When he was taken into custody, the suspect began chanting, “Free, free Palestine,” Smith said. Smith said law enforcement did not believe there was an ongoing threat to the community.