A motorcyclist was killed Wednesday night in a crash that forced D.C. police to shut down parts of Interstate 295 in Southeast Washington, officials said.

According to preliminary accounts, the motorcyclist fell in the northbound lanes of I-295, near the Suitland Parkway exit, about 7:44 p.m., said Officer Paul Metcalf, a police spokesman. He was then struck by a vehicle, and he suffered fatal injuries.

Police shut down the northbound lanes for at least two hours while they investigated.