MI5 received TWO separate warnings Manchester bomber Salman Abedi was buying dangerous chemicals months before attack - but didn’t act in time

MI5 chiefs failed to act on two separate warnings that the Manchester Arena attacker was buying bomb-making ingredients in the months before the outrage.

The Mail on Sunday has learned that the agency received two ‘pieces of intelligence’ about the purchase of chemicals by Salman Abedi and his associates – but didn’t realise the ‘significance’ of the information.

Sir John Saunders, the chairman of the inquiry, revealed in his final report that a delay in reporting the second piece of intelligence within MI5 and to police resulted in a ‘significant missed opportunity to take action that might have prevented the attack’.