Sir Alan Sugar is being taken to an employment tribunal for alleged sexual discrimination and bullying by a senior female executive at one of the Apprentice star's flagship companies.

Hanna Sebright, managing director at Amscreen Healthcare, is taking the government's recently appointed enterprise Tsar to court.

Mrs Sebright is also claiming that former Apprentice winner Lee McQueen subjected her to lewd and offensive remarks and that the introduction of former Apprentice winners and finalists into the workplace caused a "poisonous" atmosphere.

Sir Alan Sugar has vigorously denied the allegations and the case will be heard in court later this year.