By CBS3 Staff

PHILADELPHIA (CBS) — A 14-year-old boy is in critical condition after he was shot multiple times in North Philadelphia on Tuesday night. The shooting happened on the 2100 block of North 18th Street around 9:14 p.m.

Police say the boy was sitting on the front steps of an unoccupied home, when three males, believed to be teenagers, walked up, shot him, and ran away.

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He was shot twice in the arm and once in the chest.

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Police took him to a local hospital.

The department is also investigating unrelated homicides in the city; the two deadly shootings happened 15 minutes apart.

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The shooting is still under investigation.