Sunday’s triple victory by opposition-backed candidates in Hokkaido, Nagano and Hiroshima by-elections had been predicted by local media before the polls closed and may have little immediate impact on the national political landscape.

But the Hiroshima loss in particular could spell trouble for Prime Minister Yoshihide Suga and the ruling parties in the coming weeks as they look to boost their popularity ahead of a general election, which must be held by Oct. 21.

“Regarding yesterday's elections, I humbly accept the judgment of voters,” Suga said Monday morning.