PHILADELPHIA (CBS) — Philadelphia Streets Commissioner Donald Carlton is free on bail after his arrest on assault charges.

Police say Carlton was involved in an argument that escalated into a fight with another man at a house party in Olney on December 6.

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The 50-year-old man suffered injuries to his eye and ribs.

Carlton was charged Friday with simple assault and recklessly endangering another person. He’s free on $2500 bail.

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Lauren Hitt, spokeswoman for Mayor Jim Kenney, says Carlton has been placed on a leave of absence from his job as Streets Commissioner because of the charges.

Hitt says Deputy Commissioner Mike Carroll will serve as Acting Streets Commissioner.

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Carlton faces a court hearing June 7.