A pedestrian wearing a face mask walks past a stock indicator displaying world share prices in Tokyo on January 4, 2021. (Photo: AFP)

TOKYO, Jan. 5 (Xinhua) -- Tokyo stocks opened lower Tuesday following a weak lead from Wall Street overnight, with caution prevailing ahead of a month-long state of emergency likely to be declared for the greater Tokyo area later this week.

As of 9:15 a.m., the 225-issue Nikkei Stock Average dropped 90.10 points, or 0.33 percent, from Monday to 27,168.28.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, fell 5.00 points, or 0.28 percent, at 1,789.59.

Air transportation, pulp and paper and glass and ceramic product-oriented issues comprised those that declined the most in the opening minutes after the morning bell.