Columbia police responded to a report of shots fired in the parking lot of the Walmart located on West Broadway around 8pm Monday. Witnesses reported four black men were possibly involved and fled on foot. Shortly after, police were called to a report of shots fired near the Hy-Vee Gas Station on West Broadway. The suspects could not be located. At this time, no injuries or property damage have been reported. There is no further description of the suspects. If you have information regarding the incident, you are asked to call Columbia Police or CrimeStoppers at 573-875-TIPS (8477) to remain anonymous.