Several newspapers have reported on new bullying allegations against Dominic Raab, the UK's deputy prime minister.
Anti-Brexit campaigner Gina Miller and a former member of staff of Mr Raab are among those claiming he mistreated them.
The claims come as he is already under investigation for alleged bullying of civil servants.
Dominic Raab, the UK's deputy prime minister, is facing new allegations of bullying.
Gina Miller, who campaigned against Brexit, accused Raab of calling her "stupid" and "naive" during a 2016 encounter at the BBC.
Miller's claim is the first on the record against Mr Raab, who is being investigated for alleged bullying of civil servants.
David Davis, a senior Conservative, said he had "no doubt" that the investigation would look into Miller's allegation.
Reports also suggest that a former member of staff of Raab's has accused him of bullying.
Miller said that Raab was "aggressive and intimidating" and that she felt she was "bullied and demeaned".
Raab denies any wrongdoing, while the prime minister is facing calls to suspend him while the investigation takes place.