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 ...

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

Add Yahoo as a preferred source to see more of our stories on Google. The US said it has intelligence that China conducted banned nuclear explosive tests. The nuclear monitoring organization said it ...

China said US claims that it was carrying out nuclear explosive tests were baseless, and it accused Washington of being the main cause of uncertainty over the global nuclear order, according to a ...

A Trump administration official said that a remote seismic station in Kazakhstan measured an “explosion” in western China on June 22, 2020. China denies conducting a test.

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

The concrete stack stood 175 feet tall, much shorter than when the reactor was irradiating fuel to produce plutonium.

U.S. Senator Edward Markey (D-MA) alongside Senate Democrats speaks during a press conference addressing a new policy that demands recipients of foreign military aid to follow international ...

The US accused China of secret nuclear explosive testing and attempting to cover it up, an official said Friday. Banned for decades under an international agreement to which China and the US are ...

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