A British MP from Boris Johnson's Conservative Party has been arrested on suspicion of rape and sexual assault, the party and police learned on Tuesday.

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According to a spokeswoman for the Conservative Party, the latter asked the MP, whose identity has not been revealed, to “not go” to Parliament while the investigation is ongoing.

London police meanwhile said a man in his 50s has been arrested on suspicion of, among other things, sexual assault, rape, "abuse of a position of trust" and misconduct of a public service.

The charges, reported to police in January 2020, relate to a period from 2002 to 2009 in London.

The suspect “remains in custody,” police said late Tuesday afternoon.

The case comes a month after a Tory MP, Imran Khan, was found guilty of sexually assaulting a 15-year-old boy. Disputing the charges against him, he announced that he intended to appeal.

Another Tory MP, Neil Parish, resigned late last month after he admitted watching porn on his mobile phone in Parliament.

The Sunday Times reported last month that 56 MPs, out of the 650 in the House of Commons, had been reported to an office responsible for registering complaints, in particular for "bad behavior of a sexual nature", put in place following the "Me too" movement.