A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground ...

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 ...

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

A U.S. official revealed details of an alleged Chinese nuclear test, urging global cooperation for disarmament while ...

A senior US arms control official presented what he described as declassified evidence of a suspected underground nuclear ...

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

Beijing dismisses Washington’s accusations that it conducted nuclear tests in 2020 as “groundless” and calls on the US to uphold global commitments under the Comprehensive Nuclear-Test-Ban Treaty.

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.

A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago. Also Monday, the assistant secretary of state ...

A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago. Also Monday, the assistant secretary of state ...

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