Michelle Rodriguez was sentenced Wednesday to six months in jail for violating probation in a DUI case.

"[She] admitted violating her probation by failing to provide proof of completion of her community service and for consuming alcohol three times while wearing an alcohol-monitoring device," said the L.A. City Attorney's office in a statement.

The Lost star must report to a Los Angeles County jail by Dec. 24.

Superior Court Judge Daviann L. Mitchell also ruled that the actress is not to be granted an early release, despite L.A.'s jail overcrowding. She was also ordered to complete 30 days of road clean-up duty.

The City Attorney's office had alleged that Rodriguez turned in a false document showing that she completed one day of service on Sept. 25, court filings show. The actress later stated that she was in New York on that date.

Her attorney, Shawn Chapman Holley, did not immediately respond to requests for comment.

Last month, her previous attorney, Richard Beada, said: "We believe this is all due to a clerical error. My client did complete the full 30 days."

Rodriguez, 29, had been serving an extended probation term for numerous driving infractions.

In May 2006, she served only four hours and 20 minutes of a two-month sentence at the Lynwood, Calif., jail for violating probation, stemming from a DUI arrest in Hawaii in December 2005.

She served, however, just over two days in a Honolulu jail in that case.

In June 2004, Rodriguez had been placed on three years' probation after pleading no contest to DUI and driving with a suspended license from two separate incidents in the Hollywood area in 2003.