Toughest part of major bridge done

Construction of the landmark Hong Kong-Zhuhai-Macao Bridge is progressing smoothly, and the most technically difficult part has been completed, according to the executive director of the project's administration on the mainland.

The bridge, the most challenging engineering project of its type in the world today, will link the southern economic hub of Guangdong province to Hong Kong and Macao. One-third of the undersea tube tunnel has been laid, executive director Wei Dongqing said.

"Technically, the Hong Kong-Zhuhai-Macao Bridge is a world-class project," he said.