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 British minister denied on Wednesday media reports that the government could end up paying billions of pounds more to Mauritius under a renegotiated deal to retain a U.S.-British military base on Diego Garcia in the Indian Ocean.

Sir Keir Starmer has defended the controversial Chagos Islands deal after the Conservative leader branded it an "immoral surrender". The Government plans to give the British Indian Ocean Territory back to Mauritius and pay to lease the strategically important US-UK military base on the largest island, Diego Garcia.