BRUSSELS (AP) — Belgian officials say that at least three people have been killed in gunfire at the Jewish Museum in Brussels.

Belgian Foreign Minister Didier Reynders, in a post on Twitter, said he was “shocked by the murders committed at the Jewish Museum” on Saturday afternoon. He said he had seen the bodies of the victims.

Interior Minister Joelle Milquet said at least three were killed in the incident, and a Brussels fire department spokesman said one person was wounded.

No details were immediately available, but according to RTBF, a Belgian broadcasting company, a person with a backpack opened fire then fled.

Police have closed off the area around the museum, near the center of Brussels, and numerous ambulances were at the scene.