Japanese voters headed to the polls on Sunday in a tightly contested election amid public frustration over rising prices and the imminent threat of US tariffs. The ruling Liberal Democratic Party (LDP) and its junior coalition partner Komeito need to secure a combined 50 seats to retain an overall majority in the upper house but the latest polling shows they might fall short.

Japanese were voting Sunday for seats in the smaller of Japan's two parliamentary houses in a key election with Prime Minister Shigeru Ishiba and his ruling coalition facing a possible defeat that could worsen the country's political instability.

TOKYO -- The Japanese public voted on Sunday to determine the makeup of the nation's upper house, in a crucial vote for Prime Minister Shigeru Ishiba, whose coalition is fighting to hold on to its majority -- one that it lost in the lower chamber last autumn.