Today, Sunday 28 May 2017, officers investigating the attack at the Manchester Arena have executed a warrant at an address in Moss Side.
A search is currently on-going.
Officers have also arrested a 25-year-old man in the Old Trafford area on suspicion of offences contrary to the terrorism act.
As it stands 14 people in total have been arrested in connection with the investigation, of which two people have since been released without charge.
A total of 12 men remain in custody for questioning.