A dispute over drugs lead to a car chase and shots fired last night in Union. The confrontation started at the main city park on park street, around 1:00 am, when a witness heard gun shots and called police. The witness told police the vehicles involved were a truck and car headed west on Park Street. A few minutes later a 911 call came in from a person who said they were being shot at on Hwy 50, that they had crashed, and that the suspect was also on scene threatening them. The 911 system identified the location as near Hwy 50 and Hwy UU, just west of the city limits. Union Police officers arrived shortly after and found the vehicle, with four males. The other vehicle had already left the scene. The victims reported they were trying to buy marijuana at the park and the two suspects possibly thought they were trying to steal it. One of the suspects pulled a pistol and shot two times, one shot into the air and the second toward the victim's truck. The second shot possibly struck a tire and flattened it. The suspects rammed the truck on Hwy 50, near Pecan Tree Lane, forcing it into a guardrail. The suspects began confronting the victims again, but fled when patrol cars were seen approaching. One of the victims received minor injuries from a punch to the face on Hwy 50. The two suspects are known to Union Police. They are both young males from the Union area. At this time the suspects have not been located.