It comes after BBC News sent a letter outlining allegations by 13 people, including Kirsty Wark, that Wallace made inappropriate sexual comments.

Gregg Wallace is to step away from presenting MasterChef while allegations of historical misconduct are investigated, the show’s production company has said.

It comes after BBC News sent a letter to Wallace’s representatives on Tuesday setting out allegations of inappropriate sexual comments by 13 people who worked with him across a range of shows over a 17-year period.

Broadcaster Kirsty Wark, who was a Celebrity MasterChef contestant in 2011, said he told “sexualised” jokes during filming.

Wallace’s lawyers say it is entirely false that he engages in behaviour of a sexually harassing nature. Masterchef’s production company Banijay UK has launched an investigation and said Wallace is co-operating.