MINNEAPOLIS (WCCO) — A spokesperson from the St. Paul Fire Department tells WCCO that the firefighters who were injured on duty Saturday suffered non-life threatening injuries.

One firefighter returned to work, while the other went home after their shift.

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The incident happened on the 1000 block of Bush Avenue in St. Paul Saturday morning, the city’s fire department said in a tweet.

Forty-eight firefighters were on scene for about four hours beginning just after 7 a.m., the department said.

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The department said the fire, although under investigation, is determined to be likely accidental.