Two men have been charged after an incident on Tuesday night during which and officer with the St. Louis County (MO) Police Department came under gunfire.

According to NBC News , 27-year-old Matthew Higgins has been charged with first-degree assault, armed criminal action, unlawful use of a weapon, unlawful possession of a firearm, and resisting arrest. In addition, 42-year-old Kenneth Bull was charged with first- and second-degree assault, armed criminal action, unlawful use of a weapon, and resisting arrest.

The incident occurred when the officer saw a car with bad plates and attempted to make a traffic stop, according to the probable cause statement. As the officer was getting out of his car, Higgins fired two shots in his direction and Bull—who was driving—took off.

Following a 15-minute vehicle pursuit their car became disabled and officers were able to arrest the men.

Each is being held on $150,000 bond.