By CBS3 Staff

PHILADELPHIA (CBS) — A shooting Thursday afternoon on a SEPTA train platform at Broad Street and Lehigh Avenue has left a man in critical condition.

Video from the Citizen app shows the platform after the incident as police investigate.

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Police say that a man and a woman got off a train and continued arguing on the platform.

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Another man then intervened on behalf of the woman and police say he shot the man she was arguing with. That man is now in critical condition.

A SEPTA police officer was on the platform and made an immediate arrest.

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For a list of gun violence resources in Philadelphia, click here.