A US appeals court has ruled that twin brothers who say the idea for Facebook was stolen from them by Mark Zuckerberg cannot back out of a settlement deal they made with the website.
Tyler and Cameron Winklevoss had asked in January to re-open a $65m legal settlement signed in 2008.
The twins say Mr Zuckerberg stole their idea after he was hired by them to code their ConnectU site in 2003.
The court said it saw no reason to re-open their case against Facebook.
Facebook has rejected the brothers’ claims.