ST. PAUL — St. Paul police said a woman who was struck and killed by a light-rail train may have been listening to headphones.

Police said the woman was heading toward the station in a crosswalk Sunday morning when she was struck by an eastbound train. Authorities said the station’s warning signals were working, and she may have been using headphones.

Police haven’t released her name but said she was in her 40s.

Metro Transit says the collision happened near the Westgate Station. Green Line service was halted, and replacement buses were being used to shuttle passengers between the Prospect Park and Raymond Avenue stops.