NATO Secretary-General Rutte said the defense industry must be prepared to assume greater risk.

Anonymous accounts on Xueqiu and HITHINK ROYALFLUSH have posted wager-style messages targeting individual names, including Gongjin Co., which hit a daily limit-up. The Shanghai Stock Exchange is closely monitoring trading in the affected stocks and said it will use self-regulatory measures—including suspending trading—against abnormal activity that disrupts orderly markets, and will report suspected illegal conduct to the CSRC for investigation.

South Korea's KOSPI extended losses, down 7% at 7,487.25 points.