Major US stock indices slumped more than 2% on closing to conclude a bruising week for markets which have been rattled by the US-China trade clash.
At the closing bell, the Dow Jones Industrial Average was down 2.2%, or more than 550 points, at 24,388.34.
The broad-based S&P 500 slumped 2.3% to 2,633.42, while the tech-rich Nasdaq Composite Index tumbled 3.1% to 6,968.48.
The losses ended the worst week for US stocks since March and left both the Dow and S&P 500 in negative territory for the year.
