TOKYO, Jan. 6 (Xinhua) - Tokyo stocks plunged Monday morning on the first trading day of 2020 as the yen's surge against the US dollar hurt exporters, while investors fled to safe-haven assets amid concerns over rising tensions in the Middle East.

(File photo)

The 225-issue Nikkei Stock Average plunged 483.27 points, or 2.04 percent, from Dec. 30 to 23,173.35.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, tumbled 29.05 points, or 1.69 percent, at 1,692.31.

The US dollar dropped to a three-month low, changing hands in the upper 107 yen level.

Markets here had been closed since Tuesday for the New Year holidays.