LINTHICUM, Md. (AP) _ A light rail commuter train arriving at Baltimore-Washington International Airport hit a safety barrier at the end of the line and derailed Sunday, injuring the train's conductor and most of its 30 passengers, a transit official said.

Maryland Mass Transit Authority spokesman Frank Fulton said the injured were transported to several area hospitals. Their conditions were not immediately available.

The one-car train originated at Baltimore's Penn Station and normally would have been traveling about 13 miles per hour as it neared the end its trip about 2:45 p.m., Fulton said. Investigators were trying to determine how fast it was moving when it hit the barrier.

Witnesses said they heard the train's brakes screeching just before the crash.