More than 200 teenagers trashed the home of Welsh lottery winner during a party advertised on Facebook.
Police were called to the home of Sandra Fosbrooke, who won $20 million in 2005, when her daughter Ffion's birthday descended into chaos, according to a report in the Daily Mail.
A witness said the six-bedroom home in Llanelli was badly damaged and furniture was being thrown out of the house.
"There were about 200 people, with fights starting everywhere. It was chaos," one person said. "I think someone threw a flatscreen telly out of the window."
Six people were arrested after the November 16 party on charges including suspicion of affray, criminal damage and possession of cannabis.
On Facebook the following day the party was likened to the film Project X where a teenage party spirals out of control.
Ffion wrote on Facebook that "everything kicked off" and said she couldn't show her face in the village again.
She also wrote that her birthday and Christmas had been "ruined" because "none of my family want to talk to me".
In 2005 checkout chick Ms Fosbrooke scooped the $20 million jackpot with her then partner Ken Henry.
The couple both returned to work after a number of years, with Mr Henry resuming a part-time job as a bingo caller, and Ms Fosbrooke taking over the tenancy of The Stag pub in Five Bells in 2010.