The Okinawa Prefectural Government filed a fresh lawsuit against the central government Monday, seeking a halt in work at the relocation site for the U.S. Futenma air base.

It was the latest shot in Okinawa's long-running fight against the plan to relocate the functions currently handled by U.S. Marine Corps Air Station Futenma in Ginowan to the less populated Henoko coastal area of Nago, partly by reclaiming land off the coastal area.

The move follows a Supreme Court ruling in December that Gov. Takeshi Onaga's attempt to revoke his predecessor's 2013 decision to approve the land reclamation work was illegal.