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.

The United States accused China of carrying out secret nuclear explosive tests in breach of an international ban.

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

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

"I can reveal that the U.S. government is aware that China has conducted nuclear explosive tests, including preparing for ...