Jerry Hall has officially filed for divorce from billionaire husband Rupert Murdoch, six years after the pair married.

The 65-year-old model and actor filed a petition in the Superior Court of California on Friday, citing “irreconcilable differences” as legal grounds for divorce.

In her petition, she also sought unspecified spousal support from 91-year-old media mogul Murdoch and wants him to pay for her legal fees.

She said in the petition she is “unaware of the full nature and extent of all (Murdoch’s) assets and debts, and will amend this petition when the information has been ascertained”.

Hall’s lawyer Ronald Brot did not immediately respond to a request for a comment.

Murdoch and Hall married in a low-key ceremony in central London’s Spencer House in March 2016. It was Murdoch’s fourth marriage and Hall’s second.

The Fox chairman controls News Corp and Fox Corp through a Nevada-based family trust that holds roughly a 40 per cent stake in voting shares of each company.