The cousin of Manchester Arena bomber Salman Abedi has spoken of the "betrayal" he felt after lending his bank card to the 22-year-old killer.

MI5 was "actively" investigating the ringleader of the London Bridge atrocity at the time of the rampage, while the Manchester bombing could have been stopped "had the cards fallen differently", an official assessment has found.

Jakovlevs posted the message, which was a public posting, shortly after the May 22 outrage by suicide bomber Salman Abedi, which killed 22 people and injured scores of others.