According to the police, the 23-year-old was arrested at a property in Shoreham-by-Sea, Sussex, more than 400-km from the Manchester Arena, where Salman Abedi detonated a suicide bomb a week ago killing 22 people.
The Sussex arrest early today brings the number of people in custody in relation to the May 22 attack to 14.
The National Health Service said 54 people injured in the attack were still being treated in 8 hospitals with 19 receiving critical care.
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