Residents watch a flag-raising ceremony at the redeveloped Huanggang Port in Shenzhen, Guangdong province, on Monday. The port, which opened at 6:30 am on Monday, allows travelers to complete both Hong Kong and Shenzhen immigration clearance in a single line.

Passengers leave for Hong Kong via the Huanggang Port in Shenzhen on Monday. <b> See story, page 3</b>