A 15-year-old boy was taken into custody Friday after stealing a city of Dallas pickup and driving it near Lake Ray Hubbard, police said.

Police were called to a city water facility on the 16900 block of Lake Ray Hubbard Drive in Forney around 10:30 p.m. Friday after a security guard tried to stop the pickup, which was being driven erratically.

The teen driver refused to stop the pickup, and the security guard fired a gun when the truck accelerated in his direction, police said.

After hitting multiple objects, including the security guard’s vehicle, the teen fled and abandoned the truck nearby, police said. Police took him into custody after finding him walking on a street with the key to the pickup still in his pocket.

The teen, who wasn’t identified, faces a charge of aggravated assault, police said.