UK Prime Minister Keir Starmer has officially resigned and delivered his resignation to King Charles at Buckingham Palace, according to FX Street. Starmer is noted as the seventh UK Prime Minister since the country’s departure from the European Union.

This political development marks a significant moment in the UK's post-Brexit era, potentially impacting the nation’s domestic and international policy direction. The resignation comes amid ongoing challenges faced by the UK government in navigating its new relationship with the EU.

For Japanese investors and markets, the resignation introduces a degree of uncertainty in the UK political landscape, which could influence currency and equity markets, especially in sectors sensitive to UK-EU trade relations.