A passenger ship carrying more than 444 people sank overnight in the Yangtze River in southern China, and seven people have been rescued, the official Xinhua News Agency reported Tuesday.

Further rescue work was under way, Xinhua said. The boat was going from Nanjing to the southwestern city of Chongqing when it sank at about 9:28 p.m. Monday night, the report said.

Xinhua said the boat was carrying 397 Chinese passengers, five travel agency employees and 42 crew members.