The Tory leader says Labour's negotiations could cost the UK billions; the prime minister questions whether Badenoch has been "properly briefed" on UK security.

A renegotiated deal on returning the Chagos Islands to Mauritius is being considered by the new US administration.

Sir Keir Starmer said legal certainty was required over the future of the Diego Garcia military base. Sir Keir Starmer warned national security could be put at risk without a deal to give “legal certainty” over the status of the Chagos Islands and the strategically important Diego Garcia military base.