A man was shot in the face with what appeared to be a flare gun during an argument at a Panera Bread restaurant in western Durham on Tuesday morning, police said.
The victim was taken to a hospital with serious injuries, police said.
Officers chased a second man in the area, but police said no charges were filed immediately.
The incident stemmed from an argument in a bathroom at the Panera Bread on Witherspoon Boulevard, police said.
Officers were interviewing witnesses to gather details on what happened, spokeswoman Kammie Michael said.