A San Francisco firefighter was charged for assaulting a fellow firefighter back in February.
Investigators say Robert Mohammed went to confront another firefighter at his home in Oakland when both were off-duty.
That’s when Mohammed allegedly hit the man with a wrench issued by the fire department.
He was charged with assault with a deadly weapon.
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The assault broke the victim’s arm, sources tell NBC Bay Area’s Investigative Unit.
The potential motive is still unclear.
