A masked carjacking suspect is dead after being shot by a St. Louis County police officer.

Police say 19-year-old Aaron Ballard pointed a gun at the officer after a chase ended in a crash Monday night. The officer shot Ballard, who was pronounced dead at the scene. Police say a loaded gun was found next to him.

Police had been searching for a gold Mercedes stolen around 2 a.m. Monday in Affton. An officer spotted the car in Jennings and began a chase that ended with the crash in St. Louis.

The driver and two other men ran away. Police are still searching for them.

The 28-year-old officer was not injured. The officer is white; Ballard was black, as are the three men who ran away.