China reacted with anger Tuesday after the Group of Seven foreign ministers released a statement a day earlier voicing strong opposition to "unilateral actions" in the East and South China seas.

"We urge the Group of Seven member states to honor their commitment of not taking sides on issues involving territorial disputes," Chinese Foreign Ministry spokesman Lu Kang said.

China's massive land-reclamation projects in the South China Sea — as well as the apparent militarization of some of the islands — has stoked concerns about its intentions as territorial disputes there simmer. Beijing has a separate dispute with Tokyo in the East China Sea over the Senkaku Islands, known as the Diaoyus in China.