Authorities: 1 hospitalized after unknown substance found at post office in Mayfair

MAYFAIR - Authorities are investigating after an unknown substance fell out of a package at a post office in Mayfair Saturday morning.

Emergency responders were called to the U.S. Postal Service location on the 2800 block of Levick Street around 10 a.m.

One person was taken to Torresdale Hospital and is in stable condition, according to officials.

This is a developing story. Stay with FOX 29 for updates.

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