Seven people were injured Saturday night in a three-vehicle crash in Prince George’s County, authorities said.

Three of the injured were flown to trauma centers by helicopter after the crash in the Camp Springs area on Branch Avenue near Allentown Road, said Mark E. Brady, spokesman for the county fire and rescue service.

Two of the victims suffered injuries that were considered life-threatening, Brady said. Several of the victims were thrown from their vehicles in the crash.

Most of the victims appeared to be in their teens or early 20s, Brady said. One was about 50, he said.