A woman was seriously injured by a CTA Green Line train Monday evening on the West Side.

Officers responded about 7:20 p.m. for a call of a female hit by a train at the Central Avenue station, Chicago police said.

A Chicago Fire Dept. spokesman said the woman hit the side of the train as it was moving at the station. She was knocked back to the platform and was bleeding from her head.

The 22-year-old was taken in serious condition to Mt. Sinai Hospital, police and the fire department said.

In a statement, the Chicago Transit Authority said Green Line trains bypassed Central Avenue for about an hour. Buses shuttled people between Austin and Laramie.

Chicago police were investigating the incident.