LOS ANGELES (AP) - A former companion of Sumner Redstone claims the signature of the media mogul on a recent document appears to be forged.

LOS ANGELES (AP) A former companion of Sumner Redstone claims the signature of the media mogul on a recent document appears to be forged.

The ex-companion, Manuela Herzer, is a former girlfriend of Redstone and has been a caretaker in recent years.

She first sought to have Redstone's mental state assessed last month and renewed that request in a new court filing Monday in Los Angeles.

The filing is accompanied by a declaration from a handwritten expert who asserts Redstone's signature on a recent agreement allowing Herzer to remove items from his home was likely forged.

It also accuses Redstone's lawyers of misrepresenting the condition of the 92-year-old in recent court filings.

Redstone's lawyer Gabrielle Vidal accused Herzer of lying and states in a court filing that she witnessed Redstone recently signing documents.

Redstone controls CBS Corp. and Viacom Inc.