Hashem Abedi has admitted involvement in planning the Manchester Arena bombing for the first time, an inquiry has been told.
The 2017 terror attack, which targeted an Ariana Grande concert, killed 22 people.
Abedi, 23, made the admission in prison last month while he was visited by two members of the inquiry’s legal team.
He was being interviewed as part of the inquiry into the atrocity, which took place on 22 May 2017.
The brother of suicide bomber Salman Abedi, 22, had pleaded not guilty earlier this year to 22 counts of murder, attempted murder and plotting to cause an explosion likely to endanger life.
He did not give evidence at the Old Bailey, but provided a pre-prepared defence statement in which he denied involvement.
He claimed to have been “shocked” by what his brother had done and did not hold extremist views.
He went on to be convicted by a jury of all the offences and was handed 24 life sentences in August with a minimum term of 55 years before he can be considered for parole.
On 22 October, Abedi was interviewed in prison where he admitted he played “a full and knowing part”, the inquiry was told.