BEIJING - The work safety watchdog on Sunday demanded an investigation into the capsizing of a boat in the southwest province of Sichuan, in which a child died and 14 people remain missing.

The search operation continues, and a work team will be sent to the site of the incident, the State Administration of Work Safety said on its website.

The leisure boat, the "Shuanglong," was carrying 18 people when it capsized during strong winds on Bailong Lake in the city of Guangyuan Saturday afternoon.

Three survivors remain under observation at a local hospital.

The administration also called on local authorities in Sichuan to launch water transport safety inspections, improve the management of sightseeing boats, remove possible dangers and prevent major accidents.