US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

Beijing and Moscow build their arsenals while the U.S. restrains itself.

"The jury remains out on whether the June 2020 event was a nuclear test or not. What is certain is that we are in a time of ...

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

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

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

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.

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

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

A US official says a seismic station in Kazakhstan collected evidence of an alleged China nuclear test at Lop Nur in June 2020.

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