CHARLESTON, W.Va.--The Charleston patrolman who was shot in the line of duty was killed by a bullet from a fellow officer's gun, city officials said.

Police Chief Brent Webster said an initial review by his department indicates Officer Jerry Alan Jones, 27, was shot by "friendly fire" as police tried to stop a suspect who was using a two-and-a-half-ton Chevrolet pickup truck as a deadly weapon.

Webster and Mayor Danny Jones, who is not related to the officer, called a press conference Sunday evening to discuss the overnight shooting.

"We have every reason to believe now. . .the bullet that killed Officer Jones probably came from one of our police officers," Webster said Sunday night.

Jones was shot after a police chase ended on Quick Road about 1 a.m. Sunday.

The suspect's encounter with police began much earlier in the evening, officials said.

About 9 p.m. Saturday, the suspect rammed his Chevrolet pickup truck into an unidentified woman's car on the West Side, Webster said.

The woman, who apparently knew the suspect, called police.

Sometime later Saturday night Patrolman Jones spotted the suspect's truck and gave chase, following the man into the Pinch/Quick area.

About 1 a.m., the suspect, who had a female passenger in the truck, pulled off Quick Road onto a patch of gravel. By that time, three more police cars were involved in the chase, and officers attempted to use their vehicles to block the suspect, Webster said.

The suspect slammed his truck into police cars, trying to get back on the road. Webster said when that didn't work, the man backed up the truck, apparently to try again.

That was when officers opened fire. Both Jones and the suspect were shot.

Jones was taken to Charleston Area Medical Center's General Hospital, where he later died. The suspect, whose name has not been released, also died.

Webster said the suspect didn't have a gun, but officers still considered him armed.

"He was armed with a two-and-a-half-ton pickup truck," Webster said.

The police chief would not release the suspect's name or the name of the woman riding in his truck, citing a Kanawha County Sheriff's Department investigation that is still underway.

Webster did say the female passenger was "more shaken than anything."