Japanese Prime Minister Shigeru Ishiba’s ruling coalition has lost its majority in Japan’s 248-seat upper house, according to Firstpost.

The Liberal Democratic Party (LDP) and its junior partner Komeito secured only 46 of the 50 seats needed to reach a majority, with two results pending. It follows their earlier lower house defeat, leaving the coalition in the minority in both chambers for the first time since the LDP’s founding in 1955.

Ishiba has vowed to remain in office and address key issues, but now faces mounting pressure to step down or form new alliances, Firstpost reported.