Authorities are investigating a gang-related shootout in Compton that left a bystander dead from a stray bullet on Saturday.

The bystander, a 45-year-old man whose name was not immediately made public, was pronounced dead at a hospital, according to the Los Angeles County Sheriff’s Department. No arrests have been made.

The shootout occurred around 10:05 a.m. Saturday, in a neighborhood near Compton Boulevard and Bullis Road, which is about a mile north of Long Beach’s northern city limits. The man had been standing on the street with friends when gunfire broke out between people in a compact car and someone on foot. The shooters fled the scene.

“It appears the victim was an innocent bystander struck by a stray bullet,” the sheriff’s department said.

Officials did not have a description of the vehicle or suspects and the weapon has not been recovered. Investigators did not give details about why they believe the shooting is related to gangs.