Sansha, China's southernmost island city that administers vast island groups and their surrounding waters in the South China Sea, will invest heavily in the transportation sector and infrastructure construction.

The city will open scheduled commercial flights at airports at Yongxing Island, the seat of the city government, and other islands now mainly used by People's Liberation Army units stationed there, Vice-Mayor Feng Wenhai said on Thursday as he delivered the government work report to the annual lawmakers' meeting.

Feng said the city government will plan for the building of three ships that will be used to transport supplies to islands under Sansha's jurisdiction. He added Sansha will continue to construct piers for all of its inhabited islands and reefs and will start building small wharves for uninhabited islets.