@SFPDMission station officers investigating an assault & shooting at 25th & Treat. 4 people injured. #sfpd pic.twitter.com/fL56jmFc99 — SFPD Night Captains (@SFPDnightWatch) October 11, 2017

A gunman is on the loose Wednesday, the day after he shot four people on a busy Mission District street.

According to the San Francisco Police Department, the incident occurred at 7:06 p.m. Tuesday, at the corner of 25th Street and Treat Avenue, at the northwestern edge of Garfield Square Park.

Police say that a man who looked to be between 18-25 years old was witnessed chasing down a group of victims, firing his gun as he ran.

Injured in the attack were four men: One aged 56, another aged 60, a third aged 39, and a fourth aged 44.

Following the shooting, the suspect fled in a car driven by a second, unknown suspect.

The four victims were transported to an area hospital for treatment, police say, of injuries they characterize as "non-life threatening."

As of publication time, the motive for the shooting was not released to the public. Police do confirm, however, that the suspects remained at large as of Wednesday, and no arrests had been made in the case.

Related: Mission Tow Truck Driver Shot In Apparent Road Rage Incident