Earlier:
- Reports of an explosion at Manchester Arena (UK)
- Yen rising - Reports of explosion at Manchester Arena (UK) - more details
- BBC reporting at least 20 dead in Manchester Arena (UK) explosion (link to a live feed is at this link)
The BBC says the explosion being treated by authorities as a terror incident
Update:
- Reports of a bomb at Manchester's Victoria train station
(Note - the station had been evacuated a bour or so ago)