Manchester Arena attack: What happened?published at 11:40 British Summer Time 27 March 2018
Twenty-two people were killed and hundreds injured when a suicide bomb was detonated after a concert at the Manchester Arena on 22 May 2017.
Salman Abedi detonated the home-made device in the arena's foyer as crowds were leaving a performance by US singer Ariana Grande.
The victims included eight-year-old Saffie Rose Roussos from Lancashire and Coronation Street super-fan Martyn Hett.
Hundreds of people injured in the attack with scores needing hospital treatment.
Some of the most seriously injured survivors are still being treated, with specialist help being provided by a "world-class" centre used by elite sports stars.