A 23-year-old man has been arrested in connection with last night's suicide bombing in Manchester.
22 people were killed and 59 injured after the blast at the end of an Ariana Grande concert in the Manchester Arena.
The security services think they know who the bomber was - and have been trying to establish if he had help.
The man was arrested in the South Manchester area, according to Greater Manchester Police:
With regards to last night’s incident at the Manchester arena, we can confirm we have arrested a 23-year-old man in South Manchester.— G M Police (@gmpolice)
Police have also confirmed another man has been arrested at the Arndale Shopping Centre after it was evacuated, but it's not thought to be connected with last night's attacks.