Chinese police use facial recognition technology to pick out a suspect in 60,000-strong concert crowd and arrest him

Chinese police have arrested a man using facial recognition, after high-tech cameras identified an alleged criminal among fans at a 60,000-strong pop concert.

The suspect, known only by his surname Ao, had been in attendance at a concert by Hong Kong singer Jacky Cheung, in Nanchang, Jiangxi province, southwest China, last week.