Shigeru Ishiba denied he had decided to quit after a source and media reports said he planned to announce his resignation to take responsibility for a bruising upper house election defeat.

Japanese Prime Minister Shigeru Ishiba denied reports he plans to announce his resignation over a historic defeat of his ruling party in a weekend election.

Japanese Prime Minister Shigeru Ishiba was facing growing pressure to resign on Wednesday after his coalition lost its majority in the upper house election over the weekend, local media reported. Ishiba's long-dominant Liberal Democratic Party (LDP) and its junior partner Komeito now form a minority government,