Testimony comes during combative day of cross-examination which also highlighted messages involving Prince Andrew

The former chief executive of Barclays, Jes Staley, has admitted to having sex with a member of Jeffery Epstein’s staff in an apartment owned by the child sex offender’s brother in New York, a court has heard.

Staley made the admission at the end of a testy day of cross-examination at the upper tribunal, but maintained that his friendship with Epstein was not personal, and had always been based on business.