MINNEAPOLIS (WCCO) – St. Paul firefighters heard gun shots Monday afternoon while putting out a blaze at a North End apartment building.

The fire started around 2:30 p.m. on the 1100 block of Mackubin Street and was extinguished before it spread beyond a single apartment unit.

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It’s not clear where the sound of gun shots came from, the  St. Paul Fire Department said. It is possible the fire ignited ammunition stored in the apartment.

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No firefighters were injured.

St. Paul police and fire are investigating the incident.

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