A woman on 1 June filed a lawsuit against Leon Black, the former chief executive of Apollo Global Management, accusing him of defamation and alleging he raped and harassed her.

The woman, Guzel Ganieva, with whom Black has said he had a consensual affair, claimed in the lawsuit that Black had mischaracterised their relationship and falsely accused her in media reports of trying to extort him after she initially posted her allegations in a series of tweets on March 17.