Crystal police are investigating gunfire that occurred outside a gas station early Monday that left four people injured.

Three men and a juvenile were hurt in the shooting near a Holiday gas station shortly after 1 a.m. at County Road 81 and Wilshire Boulevard, police said.

Officers found the victims with gunshot wounds on a nearby bridge, according to an audio recording on the Police Clips Facebook page.

Three victims were expected to be released from the hospital.

One victim was still being treated, police said in a news release.

Police arrested three suspects shortly after the shooting.

Tim Harlow