Actress Lindsay Lohan turned herself in to Los Angeles jail authorities early on Thursday and has begun serving a sentence for jewelry theft under house arrest, officials said.

Lohan, 24, turned up at a Los Angeles jail at 5 am on Thursday, according to official records.

Los Angeles Sheriff's department spokesman Steve Whitmore told People magazine that she was deemed eligible for home confinement, fitted with an electronic monitoring ankle bracelet and released to her home within an hour.

"She is now confined to the interior premises of her home at all times," Whitmore told People.

Lohan's lawyer could not immediately be reached for comment.

The "Mean Girls" actress was sentenced two weeks ago to four months jail and 480 hours of community service after pleading no contest to stealing a $2,500 gold necklace from a store in January.

It was not immediately clear how much time she would be confined to house arrest. But Whitmore said earlier this month she would likely serve 16-17 days at home under programs for nonviolent offenders, good behavior and because of overcrowding in the city's jails.

Lohan has already started her community service at a women's jail.

Lohan has been in and out of jail and drug and alcohol rehab for the past four years following a 2007 arrest for drunken driving and cocaine possession.

Her troubles have derailed her once promising Hollywood career, but she was cast in April in an upcoming movie about New York crime boss John Gotti, alongside actors Al Pacino and John Travolta.