A barge collides with Jintang Bridge near Ningbo City, Zhejiang Province, resulting in the collapse of a 60-meter section of the unfinished structure at midnight on March 27. Four of the 20 sailors on board the barge are still missing, according to rescuers.

Local Ningbo media reported the 7,000-ton vessel, which was traveling north from Ningbo Port, may have taken the wrong route causing it to smash into the lower arch of the bridge. A team of experts has been dispatched to investigate the cause of the accident.

The bridge, with a designed length of 26.54 km, is China's third longest cross-sea bridge. It is scheduled to open to traffic in 2009.