John McKendrick QC’s comments came after Johnson resigned as foreign secretary on Monday (July 9) over Theresa May’s Chequers Brexit deal.

In his resignation letter, Johnson said “the Brexit dream was dying”. It came just hours after Brexit secretary David Davis also tendered his resignation.

May in her response thanked Johnson for his service but said she was surprised by his decision following what she described as “productive discussions” at Friday’s Chequers summit.

McKendrick though did not mince his words following Johnson’s resignation.

Tweeting a picture of the pair during Johnson’s visit to the island following the devastation wrought by Hurricane Irma, McKendrick said: “Meeting the worst Foreign Secretary we’ve ever had among the destruction of Hurricane Irma in Anguilla. Disinterested and out of his depth, he cared nothing for our situation. Good riddance.”

Responding to tweets critical of his tone, McKendrick added: “I’ll let you work on ‘tone’ when you’ve lived without running water or power for three months without much FCO [Foreign and Commonwealth Office] concern. And for the people of Anguilla, it was worse. Much.”