Simon Blagden, chief executive of the Jamie Oliver Restaurant Group, told The Times: “This is a tough market and post-Brexit the pressures and unknowns have made it even harder.”

He also stated that overall the business was “in very good shape”.

The closures in Aberdeen, Exeter, Cheltenham, Richmond, Tunbridge Wells and Ludgate Hill, near St Paul’s Cathedral will affect 120 employees. The chef said that he hoped to find workers alternative jobs.