ELKRIDGE, Md. (AP) — A pedestrian was struck and killed by a Maryland commuter train.

Media outlets report that the person was hit by MARC train in the Elkridge area early Friday. Maryland Transit Administration officials say the MARC Camden line is shut down south of Baltimore after the incident.

Howard County Police say detectives don’t know why the pedestrian was walking alone in the area and are working to determine his identity. No one on board the train was injured.

MTA officials say there’s no estimate for when Camden line service will be restored. MARC’s Penn line and Metro will honor Camden line tickets.