Eleven crew of a Chinese cargo ship are missing following a collision with a large container ship in the waters off Hong Kong on Monday, authorities said. Hong Kong is one of the world's busiest shipping channels, although serious accidents are rare. The cargo ship Zhong Xing 2 sank after the collision with the 300-m- (984-ft-) long Marshall Islands-registered MOL Motivator about two nautical miles southwest of Po Toi Island, a spokeswoman of the Hong Kong Maritime Department said. "Zhong Xing 2 is suspected to have sunk after the collision, and it is reported there are 12 crew onboard," said the spokeswoman, who declined to be identified in line with department policy. "One of them was picked up by a fishing vessel navigating close by," she added.