A Trump administration official said that a remote seismic station in Kazakhstan measured an “explosion” in western China on ...

U.S. releases seismic data alleging a secret 2020 Chinese nuclear test at Lop Nur as global arms control agreements continue ...

Officials have ruled out earthquakes or mining as the source of a 2.75-magnitude event in 2020 near China's nuclear test site ...

State Department alleges China conducted nuclear test in 2020, reigniting debate over U.S. testing moratorium and ...

At a event in Washington D.C., A U.S. official said a remote earthquake in 2020 was caused by a Chinese nuclear test.

China has rejected a senior US official's claim that the country carried out a secret underground nuclear test in 2020. The Comprehensive Nuclear-Test-Ban Organization said there was insufficient data ...

Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald Trump vows to restart U.S. tests.

A senior U.S. official has alleged that China carried out a covert underground nuclear test in June 2020 at its Lop Nor test site in western China, raising fresh concerns about global nuclear security ...

It remains to be seen whether the three big nuclear powers are headed into a new arms race, or whether President Trump is trying to spur negotiations on a new accord now that a last Cold War treaty ...

A senior U.S. official has disclosed new allegations that China carried out an underground nuclear test at its Lop Nor test ...

A U.S. official claims China conducted an underground nuclear test in 2020, a charge China denies. The allegation is based on seismic data from Kazakhstan. The situation fuels global tensions amid ...

The U.S. government revealed new intelligence on Tuesday suggesting China may have conducted an ...