PHILADELPHIA (CBS) — Police are investigating a shooting at a train station along SEPTA’s Market-Frankford line.

It happened around 12:30 p.m. Sunday at the 60th Street stop in West Philadelphia.

Police say a 35-year-old man was shot four times on the stairway to the El platform.

He was rushed to Presbyterian Hospital in critical condition.

No weapon was recovered and there were no initial arrests.