SAN FRANCISCO (KRON) — A man was struck in the head with a baseball bat Friday night during a fight in the Mission.

According to police, the fight was reported at 24th Street and Potrero Avenue around 8:13 p.m.

Four males believed to be between the ages of 16 and 20 were fighting a 36-year-old man when one of the teens grabbed a bat and swung for his head, officers said.

He was transported to San Francisco General Hospital with life-threatening injuries, including a laceration to the scalp and a head injury, police said.

Police are searching for the four suspects who fled on foot.  They’re described as black males who were wearing jeans and red sweatshirts.