Broadcaster Kirsty Wark, who was a Celebrity MasterChef contestant in 2011, said he told "sexualised" jokes during filming.
Production company Banijay UK said the 60-year-old was "committed to fully co-operating throughout the process".
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 ...
NewsNight's Kirsty Wark has made allegations against Gregg Wallace, who has stepped away from MasterChef after the BBC ...
Former Newsnight host Kirsty Wark has accused Gregg Wallace of making inappropriate sexual comments, according to BBC News.
According to the BBC, other allegations include Gregg Wallace talking openly about his sex life, taking his top off in front ...
GREGG Wallace allegedly made sexual remarks to 13 colleagues including BBC presenter Kirsty Wark – as the star today stepped ...
MasterChef host Gregg Wallace has stepped down over claims he made a series of inappropriate sexual comments on a range of ...
The Scots former Newsnight presenter claimed Gregg Wallace made inappropriate sexual comments during the filming of Celebrity ...
Gregg Wallace is stepping away from presenting MasterChef after complaints to the BBC from 13 people, including Newsnight ...
Gregg Wallace steps away from BBC's MasterChef as Kirsty Wark accuses him of telling 'sexualised jokes' - Wallace, 60, is ...