MSCI’s ex-Japan Asia-Pacific index fell 1.7 percent. Hong Kong’s Hang Seng dropped 2.7 percent while Shanghai shares dipped 1.2 percent.

Canadian authorities said they had arrested Huawei’s global chief financial officer in Vancouver, where she is facing extradition to the United States.

The arrest is related to violations of U.S. sanctions, a person familiar with the matter said, though officials have so far stayed mum on her allegations.

The arrest heightened the sense of a major collision between the world’s two largest economic powers not just over tariffs but also over technological hegemony.

• Japan’s Nikkei closed at more than a five-week low on Thursday as chip-related stocks were hit after Canada arrested a top executive of Chinese tech giant Huawei at the request of the United States, threatening a new spike in Sino-U.S. tensions.

The Nikkei share average lost 1.9 percent to end at 21,501.62, its lowest closing level since Oct. 30.

• Sharp losses in technology shares pulled down benchmark stock indexes in China and Hong Kong on Thursday, after the global chief financial officer of Chinese technology giant Huawei was arrested in relation to alleged violations of U.S. sanctions.

The arrest could drive a wedge between China and the United States just days after President Donald Trump and President Xi Jinping agreed to a temporary truce in their trade war to give the two sides more time for negotiations.

The tech rout and renewed trade worries pulled the Shanghai Composite index down 1.7 percent to 2,605.18 points, while the blue-chip CSI300 index fell2.2 percent.