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.

If Britain wants to remain a reliable partner in our security alliance, it must be willing to defend its sovereignty. As much as President Trump uses unpredictability as a diplomatic tool, I can predict one thing for sure: there is no way he will allow Britain to give up its sovereignty over the Chagos Islands.

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.

Mauritius has indicated that it has secured more concessions from the United Kingdom in the Chagos Islands deal, raising the lease payments for the Diego Garcia military base

Britain struck a deal in October to cede sovereignty of the Chagos Islands to Mauritius – a former colony that became independent in 1968 – while retaining control under a 99-year lease of the military base on Diego Garcia, the largest island of the Chagos archipelago.

The UK government has denied claims made by the prime minister of Mauritius that it faces paying billions more under a renegotiated deal over the future of the Chagos Islands. Last October, the UK announced it would hand over sovereignty of the islands to Mauritius but would maintain a 99-year lease over the UK-US military airbase on the largest island,

There are signs of unease within the Government about the plan to hand over the British Indian Ocean Territory.