LOS ANGELES (AP) - Khloe Kardashian's stay in jail Friday may have been brief, but it did include a bit of drama: a jailhouse lockdown. The reality TV starlet spent roughly three hours in a Los Angeles area jail for violating probation stemming from a drunk driving arrest last year.

Shortly before her arrival, someone called in a bomb threat and the entire facility had to be locked down, Los Angeles County Sheriff's spokesman Steve Whitmore said.

The threat was not related to Kardashian's arrival and she was placed in a holding cell for her safety, Whitmore said. The call turned out to be a hoax, he said.

Kardashian is the youngest daughter of late attorney Robert Kardashian and is featured on E! Entertainment Television's "Keeping Up With the Kardashians" reality show.

A judge earlier this month sentenced the 24-year-old to up to 30 days in jail after she admitted violating her probation by failing to enroll in an alcohol education class and clean up roadside trash.

Jail overcrowding forced officials to release her early, just as they have with inmates, including other well-known personalities such as Nicole Richie and Lindsay Lohan.

"We treated Ms. Kardashian as we would any other inmate with similar charges and circumstances," Whitmore said.