Production company Banijay UK said the 60-year-old was "committed to fully co-operating throughout the process".
Broadcaster Kirsty Wark, who was a Celebrity MasterChef contestant in 2011, said he told "sexualised" jokes during filming.
NewsNight's Kirsty Wark has made allegations against Gregg Wallace, who has stepped away from MasterChef after the BBC ...
Gregg Wallace steps away from BBC's MasterChef as Kirsty Wark accuses him of telling 'sexualised jokes' - Wallace, 60, is ...
GREGG Wallace allegedly made sexual remarks to 13 colleagues including BBC presenter Kirsty Wark – as the star today stepped ...
Sir Rod Stewart has accused Masterchef host Gregg Wallace of humiliating his wife after she was reduced to tears on his show ...
Kirsty Wark is among 13 people who have accused MasterChef presenter Gregg Wallace of making inappropriate sexual comments.
Respected Scottish broadcaster Kirsty Wark has been among those to lodge complaints over the behaviour of Masterchef judge ...
CELEBRITY MasterChef finalist Kirsty Wark claims she saw presenter Gregg Wallace make people “uncomfortable” by repeatedly ...
It comes after BBC News sent a letter outlining allegations by 13 people, including Kirsty Wark, that Wallace made ...
Former Newsnight host Kirsty Wark is among those who have accused BBC MasterChef star Gregg Wallace of inappropriate remarks.