Liz Truss’s chief of staff was paid by a Libyan warlord to persuade ministers that he should be treated as the country’s recognised leader.
Downing Street said Mark Fullbrook, 60, would play no part in Libyan policy work after The Sunday Times revealed he had worked as a lobbyist for Fathi Bashagha.
Labour criticised the PM’s judgment in appointing the political strategist, who has also been interviewed by the FBI over his lobbying.
In exchange for diplomatic recognition, the Libyan reportedly offered a concession for the UK on access to oil fields and a crackdown on Mediterranean migrants.
A spokesman for Mr Fullbrook said both he and his firm had complied with all legal obligations and conducted everything in an open and transparent manner.
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