Japan's ruling coalition collapsed Friday as junior partner Komeito quit the alliance, putting in peril Sanae Takaichi's bid to become the country's first woman prime minister.

Takaichi became head of the Liberal Democratic Party (LDP) less than a week ago and had been expected to be approved by parliament as premier this month.

But Komeito's decision to end the alliance that has governed Japan almost uninterrupted for 25 years sank Japan into a new political crisis.

The yen dropped against the dollar following the announcement, while the Nikkei closed down 1.0 percent.

"We want the LDP-Komeito coalition to go back to the drawing board for now and bring an end to our relationship," Komeito party chief Tetsuo Saito told reporters after talks with the LDP.

"Given that we have not receiv

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