Air controls imposed on Tuesday morning delayed at least ten flights at Baiyun airport in the southern city of Guangzhou and stranded about 1,600 passengers, sources with China Southern Airlines said.

The controls were imposed for unspecified reasons over eastern regions of China. Flights bound for Nanchang, Shanghai, Qingdao, Hangzhou, Nanjing and Dalian were postponed.

Flights started to resume from 3:30 p.m. on Tuesday.

The airline sent staff to provide water and food for passengers whose flights were delayed.

Airport sources said the controls might persist for days, and they advised passengers to adjust their travel plans and follow updated flight schedules.

(Xinhua News Agency November 21, 2007)