China urges calm over 'spy' balloon in US airspace - BBC
What we know about Chinese 'spy' balloons - DW (English)
China says spy balloon flying over US is a 'civilian airship' - USA TODAY
Second spy balloon spotted over Latin America, says Pentagon, as Blinken postpones China trip - The Guardian US
Chinese surveillance balloon is only latest setback in tense U.S-China relations - NPR
A balloon upended Blinken's trip to China. That could be a good thing. - POLITICO