Suspected suicide attack in Britain At least 22 people have been killed and almost 60 injured in a blast following a pop concert by U.S. singer Ariana Grande in the British city of Manchester. The incident is being treated as a terrorist attack 21:33GMT: Explosion at Manchester Arena Opera House Royal Exchange Theatre Metropolitan University Oxford Road Piccadilly Station Arndale Centre Victoria Station River Irwell MANCHESTER 500m London Manchester UNITED KINGDOM Source: BBC World Service