Based on the evidence, the claim is inaccurate regarding what the BBC actually reported.

• The BBC reported that Sir Keir Starmer resigned as Labour Party leader, not as UK prime minister¹.
• According to the BBC and other news sources, Starmer will remain as caretaker prime minister until a new Labour leader is chosen in the coming weeks²¹.
• The BBC's headline and video coverage referred to his "resignation speech" as UK Prime Minister, but the content of the report explicitly states he resigned as Labour leader while remaining in his role as PM temporarily¹³.
• The Associated Press also confirmed that Starmer is stepping down as Labour Party leader but will remain caretaker prime minister².

The user's claim conflates resigning as party leader with resigning as prime minister, which misrepresents the BBC's actual reporting.

Overall validity: 15%

1. Watch: Starmer resigns and Burnham sworn in as MP - BBC
2. Keir Starmer announces resignation as UK prime minister - AP News
3. UK Prime Minister Keir Starmer Expected to Set Resignation Timetable