WASHINGTON: China announced Friday it was ending all contact with the United States on major issues — including crucial climate cooperation that led to the international 2015 Paris accord — as tensions and public rebukes ratcheted higher over House Speaker Nancy Pelosi's visit to Taiwan.

China's move to freeze key lines of communication adds to a rapid souring of relations from Pelosi's visit and from the Chinese response with military exercises off Taiwan, including firing missiles that splashed down in surrounding waters.