Japan's Prime Minister Shigeru Ishiba plans to announce his resignation by the end of next month, media said on Wednesday, following a bruising defeat in an upper house election. That step would trigger a leadership race in his Liberal Democratic Party (LDP),

Japanese Prime Minister Shigeru Ishiba has vowed to remain in power to oversee the implementation of a new Japan-US tariff agreement, despite media speculation and growing calls for him to resign after the historic defeat of his governing party.