By: KDKA-TV News Staff

PITTSBURGH (KDKA) – First responders are evaluating at least three patients after a five-vehicle crash involving a school bus in McKeesport.

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It happened around 4 p.m. Wednesday on Walnut Street at the 15th Street Bridge.

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(Photo: KDKA)

It’s unclear if any students were on the bus, or what led up to the crash.

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Stay with KDKA for the latest on this developing story.