8 men are now being questioned in connection with the Manchester Arena bombing.
Searches are continuing across the city after 22 people were killed and hundreds injured in the attack on Monday night
Another person was arrested in the Moss Side are overnight – A man and woman held earlier this week have been released without charge.
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Meanwhile, armed police will be present on railway lines throughout the UK for the first time.
They’ve been patrolling on the London Underground network since December.
