Twenty-seven fishermen were missing after a Vietnam-registered vessel sank in the East Sea , Chinese maritime rescue authorities said on Dec. 16.

The fishing vessel, named Phu Tan, capsized and sank due to strong gales in the sea about 110 nautical miles to the west of Sanya city in the southern island province of Hainan , according to China ’s Xinhua News Agency.

Chinese maritime rescue authorities dispatched a rescue vessel to search for the missing fishermen after receiving two emergency calls from the Vietnam Maritime Administration at noon.

Hindered by gale force winds of up to 90km per hour, the rescue vessel was expected to reach the site where the fishing vessel sank by 9 p.m.

A towboat travelling about 40 sea miles away from the site was also ordered to assist with the rescue./.