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At least 20 people are believed to be dead from a mass shooting in Lewiston, Maine, on Wednesday evening, according to multiple sources briefed on the situation. Dozens of other people were injured, sources said.

The person of interest is still at large and has been on the run for hours, law enforcement said.

The shooting may have unfolded in multiple locations, including a bowling alley where a children’s league was taking place and a local bar, officials said.

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