A total of six people remain in custody
Three men arrested in connection with the bombing of a Manchester concert in May have been released without charge.
Greater Manchester Police say a 44-year-old man arrested on May 26th has been released from custody.
A 20-year-old man detained on June 6th has also been released.
While another man who presented himself at a north Manchester police station on June 7th has also been released from custody.
As it stands, 21 people have been arrested in connection with the investigation. Fifteen of these have been released without charge.
A total of six men remain in custody.
The attack - which left 22 people dead and dozens others injured - happened May 22nd after US singer Ariana Grande had performed at the Manchester Arena.
She returned to the city last week and was joined by performers including Justin Bieber, Coldplay, Niall Horan, Katy Perry, Coldplay, Take That and Miley Cyrus for a tribute concert.
Promoters say net ticket proceeds of the 'One Live Manchester' show will go directly to the We Love Manchester Emergency Fund, which was set up by Manchester City Council in the wake of the attack.