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.

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

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He was rushed to Presbyterian Hospital in critical condition.

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No weapon was recovered and there were no initial arrests.