Channel News Asia reports:

Voters in Tokyo went to the polls Sunday in a closely watched gubernatorial election, with outspoken nationalist Shintaro Ishihara favoured to win a third term to lead the world's largest metropolis.

Tokyo is one of 13 provinces holding elections on Sunday in the run-up to July's upper house elections, which will be a key test for embattled conservative Prime Minister Shinzo Abe.

Ishihara, an independent who is supported by Abe's Liberal Democratic Party, is well ahead in opinion polls despite the opposition's hopes that a series of scandals would bring him down.

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