Paris Hilton arrives at her birthday celebration at Body English inside the Hard Rock Hotel & Casino in Las Vegas on Saturday, Feb. 17, 2007. (AP Photo/Isaac Brekken)

WEST HOLLYWOOD, Calif. - Paris Hilton could have her probation revoked - possibly resulting in jail time - if she is found to have been driving with a suspended license because it would violate conditions of her previous sentence for reckless driving, authorities said Wednesday.

The 26-year-old hotel heiress and star of "The Simple Life" was ticketed for misdemeanor driving with a suspended license after her blue Bentley Continental GTC was pulled over on Sunset Boulevard on Tuesday, Los Angeles County sheriff's Sgt. Duane Allen Jr. said.

She was stopped about 11 p.m. after authorities saw the car speeding with its headlights off, Allen said.

"Our office is waiting to obtain a copy of the citation," said Nick Velasquez, a spokesman for the Los Angeles city attorney's office. "Once we're able to verify that Miss Hilton was driving the vehicle, we will request that the court revoke her probation and set a probation violation hearing."

Hilton could face up to 90 days in jail if a judge finds she violated her probation, he said.

"That is certainly one of the possibilities," Velasquez said. "The judge would make that determination."

A call to Hilton spokesman Elliot Mintz wasn't immediately returned.

In January, Hilton pleaded no contest to alcohol-related reckless driving stemming from a Sept. 7 arrest in Hollywood. She was sentenced to 36 months' probation, alcohol education and $1,500 in fines.

Earlier, Mintz said Hilton was on her way home Tuesday from buying DVDs at Virgin Megastore in West Hollywood after spending the day at home for a photo shoot.

Mintz said Hilton didn't realize the car's headlights weren't on because she had just left a parking structure that was brightly lit. She was told by police she was stopped for not having the headlights turned on. Speeding was not mentioned, Mintz said.

"When she called me, she asked if her license was suspended," Mintz said early Wednesday. "If that's the case, she and I are unaware of it."

Hilton was picked up by a friend and taken home after the incident.