The Solomon Islands government said a deal signed by one of its provinces to lease the entire island of Tulagi to a Chinese company is unlawful and should be terminated, a move applauded by United States on Friday.

Details of the long-term lease between Solomons' Central Province and China Sam Enterprise Group were made public shortly after the Pacific nation switched diplomatic ties to Beijing from Taiwan in September. The shift was strongly criticized by the United States.

Solomons Attorney General John Muria said the province and the Chinese company were not legally able to strike such an agreement without government involvement.