PHILADELPHIA (AP) -- A woman was killed when she was hit by a commuter train in Philadelphia after she fell onto the tracks, a regional rail spokesman said. Andrew Busch of the Southeastern Pennsylvania Transportation Authority said the woman apparently was waiting for the train on the Market-Frankford line at the Allegheny Station when she fell about 5:45 p.m. Saturday. He said she fell at the same time an eastbound train was entering the station and there would have been no time for anyone to help her off the tracks before the train hit. He said investigators do not suspect foul play but were still trying to determine why she fell and cause of death. He did not have her name. Service on part of the line was interrupted for about two hours.