Labour has questioned whether Dominic Raab should remain as foreign secretary, describing his behaviour as “utterly shameful” after it emerged he delegated a reportedly crucial call to an Afghan counterpart to a junior minister last week while he was on holiday.

After days of increasing pressure on Raab over both his department’s response to the Taliban’s rapid takeover of Afghanistan and his decision to return from a beach holiday only on Sunday, Labour said he “should be ashamed” of his actions.