A department spokesman said the officer had been taken to Sinai Grace Hospital after being injured on Prevost Street, west of Greenfield.
Officers responded to a suicide call at around 4:45 p.m Sunday. When officers approached the home, a neighbor was letting her American Bulldog out, and the dog charged at the officers.
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Officers attempted to retreat, officials said. One officer fired a shot at the dog but missed and hit their partner in the leg.
The officer was transported to the hospital and was listed in stable condition.
Detroit police officers in the area of Prevost and Hackett Street Sunday.