British actress Elizabeth Hurley has confirmed that her three-year marriage with Indian businessman Arun Nayar has been off for months.

"Not a great day. For the record, my husband Arun & I separated a few months ago. Our close family & friends were aware of this," she said on Twitter on Sunday.

Hurley's post was a rebuttal to UK tabloid reports that she was cheating on her husband with Australian cricketer Shane Warne.

Britain's News of the World had splashed pictures of the couple caught kissing in the lobby of London's Bentley Hotel, where they spent two nights together this week, it said.

The 43-year-old model-actress had begun dating Nayar in 2003 and the two exchanged vows in March 2007 at the Sudeley Castle in Gloucestershire before tying the knot, Hindu-style, at an extravagant week-long celebration at Umaid Bhawan Palace in Jodhpur.

The Daily Mail had also cooked up a juicy story. "It is more than just a fling. Liz is really falling for Shane. Shane has been a real support through the tough time she's had splitting with Arun," an unnamed source told the UK tabloid.

"The only thing standing in their way is the geography. Shane is mesmerised by Liz. She's the first person he has felt so strongly about since his divorce. They have so much chemistry," the report said.

The Australian spin-wizard also posted a ‘clarification' to the tabloid reports on his website.

"Sadly and unfortunately, (wife) Simone and I split up a while ago, our close friends and family were informed at that time. It is a private matter so we did not make it public. We remain friends and will continue to be good parents," he said.

41-year-old Warne has three children - Brooke, 13, Jackson, 11 and Summer, 8 - from a series of relationships.

Hurley has an 8-year-old son, Damian, with American film producer Steve Bing. She earlier dated actor Hugh Grant for 13 years before the two announced an "amicable" split in May 2000.