The Okinawa Prefectural Government will file a fresh lawsuit against the central government next month to demand that work on the replacement for U.S. Marine Corps Air Station Futenma be halted, the governor said.

The move will reignite the legal tussle between the prefecture and the central government over the long-stalled replacement plan for the base, which is situated in Ginowan. The new airstrip is being built on landfill off less-populated Henoko, a coastal part of Nago further north on the main island adjacent to the marines' Camp Schwab.

The central government began building the seawalls for the replacement facility amid local protests in late April, four months after the Okinawa Prefectural Government lost its case for blocking the project in the Supreme Court.