Actress and model Elizabeth Hurley's three-year marriage to uber rich Arun Nayar has hit rock bottom amid a tabloid report that claims she's cheating, RadarOnline.com has learned.

PHOTOS: The Best, Worst & Wackiest Fashions Of The Weekend

Hurley 45, Tweeted Sunday: "Not a great day. For the record, my husband Arun and I separated a few months ago. Our close family & friends were aware of this."

PHOTOS: Celebrity Cheaters

Hurley's Tweet comes on the heels of Britain's News Of The World story alleging the actress is having an affair with cricketer Shane Warne. The newspaper has pictures and even explosive video of the two kissing, and says that they spent the night together Wednesday at London's Bentley Hotel.

After ending her 13-year romance with Hugh Grant in 2000, Hurley soon began dating Indian textile heir Nayar in 2002. The two wed lavishly in March 2007 -- first at a castle in England, and then at a palace in Jodhpur, India.

PHOTOS: Top Celebrity Sex Scandals

Hurley has a son, Damian, 8, with former lover Steven Bing.

RELATED STORIES:

EXCLUSIVE VIDEO INTERVIEW: Tiger Woods' Mistress Joslyn James - 'I'm Dating A Celebrity'

Husband Of Tony Parker's Alleged Mistress Files For Divorce

Tony Parker Releases Statement Regarding Divorce