Park City police are asking for the public's help in finding a man accused of severely beating a convenience store clerk.

An arrest warrant was issued over the weekend for Freddy Vasquez-Lopez, 19.

On Saturday about 3 a.m. a 25-year-old female clerk was working alone at a convenience store on Sidewinder Drive in Park City when a man came in and threatened her with a gun, then dragged her into a back room and beat her, said Park City Police Sgt. Darwin Little.

"He beat her up pretty severely with fists and the handgun. She lost consciousness," he said.

When the woman regained consciousness, her assailant was gone. She walked outside and found an employee of another business, who called police.

Investigators were unsure of a motive Sunday noting that it did not appear anything was taken from the store.

"It's bizarre. I wish we knew why he did this," Little said.

The woman was taken to an undisclosed hospital. Little said the injuries were not life-threatening and the woman was expected to make a full recovery.

The woman did not know the name of the man who assaulted her but said she recognized him as a person who visited the store frequently.

Police identified the man through the store's surveillance camera and from showing his picture to others.

Little said Lopez has lived in various locations around Park City for a number of years and worked several odd jobs during that time, including as a chef at a Park City restaurant.

"He knows we're looking for him," Little said. "We've talked to his family, and some friends have apparently told him that we're looking for him."

Detectives weren't sure Sunday if Lopez had left Park City.

Anyone who has information on Lopez's whereabouts is asked to call Park City police at 435-615-5500. Little said he should be considered armed and dangerous.