US intelligence agencies believe China is developing a “new generation” of nuclear weapons — with Beijing having reportedly ...

US officials reportedly believe China’s nuclear expansion is narrowing the gap with the United States and Russia, potentially ...

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.

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

The US accused China of secret nuclear tests, banned under international agreement, that were building toward tests of larger nuclear warheads.

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. VIENNA (Reuters) -The head of the Comprehensive Nuclear-Test-Ban Treaty Organization, or CTBTO, said on ‌Thursday that any ...

President Donald Trump’s calls to ramp up nuclear weapons testing last week have put nuclear watchdogs and world leaders on alert while experts say the United States has little to gain. Photo by Yuri ...

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