“I want to put an end to that speculation. The current situation is making it impossible for me to carry out my role as I would like,” he said.
“I believe in the current circumstances the responsible course is to allow the appointment of a new ambassador.”
Prime Minister Theresa May told parliament moments after Darroch’s resignation that the criticism he faced was “beyond unfair and wrong”.
“I think he’s given honourable and good service and he should be thanked for it,” she said.