manchester. we have a report from steve douglas of "independent television news." >> reporter: another night and another city consumed by rioting. this was a store ablaze in manchester's city center. it appeared to be started by a teenager moments earlier who calmly walked away. today an 18-year-old man was arrested on suspicion of arson. hours earlier, greater manchester police released images of those they're searching for on a night when they struggled to cope. here you can see a t.v. being looted from this shop. but with the possibility of violence, was it right to send 100 officers to help in london? >> we were prepared. we've done a huge amount of work during the day. we had a lot of officers on duty. we've already changed to 12-hour shifts so having even more officers on duty. >> reporter: the riots were worse here. here, cars and buildings burned. the police charged, but for large periods the streets didn't belong to them. lawlessness and looting prevailed. at the center was a shopping precinct-- on fire and under siege. >> it's just a bit sad. people are frustrated because they're going