A detained cousin of the Manchester bomber Salman Abedi previously made antisemitic rants on social media and voiced his hatred for the UK.

Abderahman Forjani, 21, was arrested with his brother, Abdalla Forjani, 24, on Tuesday at their family home in Fallowfield. On Friday at 5.15am the barber shop they ran, Fade Away, was raided by police.

In a series of posts the younger brother said that he hoped the UK would go “bankrupt soon”, that it was “sucking up” his money and that he would be rich living elsewhere.

“If only Hitler was still alive — these Jews would be burnt in chambers,” he wrote in one post.