Actress Amanda Bynes has left the Reagan UCLA Medical Center where she was undergoing court-ordered mental health treatment and moved to a private facility outside of Los Angeles, her mother’s attorney said Monday.

Bynes is now under the conservatorship of her mother after a mental health court proceeding earlier this month, Lynn Bynes' attorney Tamar Arminak said. 

Bynes has been under court-ordered psychiatric care after she reportedly started a small fire in front of a Thousand Oaks home in July.

Since the court effectively named Lynn Bynes as her daughter's conservator, she filed to withdraw a separate conservatorship proceeding in Ventura County probate court, Arminak said.

“Amanda is making great strides towards recovery,” the lawyer stated. “The entire Bynes family would like to ask that they be given some measure of privacy so they can focus on Amanda’s health and well-being. The Bynes family would also like to thank all of Amanda’s supporters and well-wishers for their thoughts and prayers during this difficult time.”

Bynes was initially placed on a 72-hour psychiatric hold after reportedly setting a fire in a driveway in Thousands Oaks not far from where she grew up. That hold has since been repeatedly extended during mental health court proceedings.

Last week, Los Angeles County Superior Court Judge Edward Moreton referred a driving under the influence charge for Bynes to the mental health division, where a judge will decide if she is fit for trial. The case stems from an April 2012 incident in which she was charged with DUI in West Hollywood.

In that case, Bynes was arrested on suspicion of DUI after she allegedly clipped a sheriff's deputy's cruiser while trying to pass it about 3 a.m. near Robertson and Santa Monica boulevards. Police said she refused to take a sobriety test. She pleaded not guilty last year to the DUI charge. Her next court date is Jan 7.

She is already on probation in California for driving on a suspended license and faces charges in New York for alleged marijuana possession and allegedly throwing a glass bong out her 36th-floor Manhattan apartment.

ALSO:

Candlelight vigil held for victims of fiery Burbank crash

Investigators to probe jet crash at Santa Monica Airport

Santa Monica Airport crash: Number of victims not yet known

richard.winton@latimes.com

Twitter: @lacrimes