The Hang Seng has plunged 662 points to 21,353. The Nikkei has shed 193 points at 12,817.
The Taiwan Weighted index has slumped 310 points to 6,846. The Straits Times index has dropped 58 points to 2,846, and the Seoul Composite index has declined 43 points to 1,515.
The Shanghai Composite index is down 27 points at 2,851.