China developing new nuclear weapons

According to CNN reports, U.S. intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one secret test in recent years as part of modernizing its arsenal. Sources familiar with U.S. intelligence assessments confirmed this. Experts say the test demonstrated that China continues to advance its nuclear technology despite international bans and sanctions.

Context

China's nuclear program since the 1990s has involved gradual weapons development, and international groups estimate the country may possess more than 300 warheads.