TOKYO: Japanese shares extended losses on Wednesday as investor fears of potential lockdowns in the country's biggest cities cast doubts over the prospects of an economic reopening. Nikkei share average tumbled 2.03% to close at 28,508.55, while the broader Topix fell 1.98% to 1,888.18 - both indexes dropped the most in about a month. "Global investors find little reason to buy Japanese stocks because Japan is lagging behind other countries in terms of containing the virus," said Hideyuki Ishiguro, senior strategist, Daiwa Securities. "Worsening the sentiment is that Japan is now planning to declare a state of emergency again." The government is considering a state of emergency for Tokyo and Osaka as new COVID-19 case numbers surge, broadcaster NHK reported on Wednesday, a move that would enable prefectural authorities to impose curbs to try to stop infections spreading.