Lindsay Lohan will be charged with theft of a $2,500 necklace reported stolen from a jewellery store last month, said prosecutors -- the most serious count the actress has faced in more than three years of trouble with the law.
District Attorney spokeswoman Jane Robison said the charge was due to be filed today. Lohan (24) was due in court for an arraignment this afternoon.
Police in Los Angeles said last week that Lohan was under investigation for taking a necklace from a Venice store later identified as Kamofie and Co.
Detectives obtained a search warrant to try to retrieve the item from Lohan's home, but it was turned in to a police station before any search was made.
Police said they had no update on the case and did not say whether the actress had made arrangements to turn herself in at court or at a police station.
Ms Robison said bail would be decided by a judge.
"We vehemently deny these allegations and, if charges are filed, we will fight them in court, not in the press," Lohan's lawyer Shawn Chapman Holley said in a statement.