curges calm over 'spy' balloon in US airspace

China has urged "cool-headed" handling of a dispute over a giant Chinese balloon heading for the eastern US.

US Secretary of State Antony Blinken earlier called off a visit to Beijing, saying the "surveillance" balloon's presence was "an irresponsible act".

Later the US reported a second Chinese balloon floating over Latin America.

China expressed regret over the balloon over the US, saying it was a weather airship that had been blown astray. It was last spotted over Missouri.