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.

Sir Keir Starmer has come under fire at PMQs over the cost of the government's deal to hand over the Chagos Islands to Mauritius. Earlier, the UK said newspaper reports that the effective price tag has jumped from £9bn to £18bn were "entirely inaccurate".

Britain's government insisted Wednesday that it must hand back the Chagos Islands to Mauritius to secure continued access to satellite communications at a key US-UK military base. The base is leased to the United States and has become one of its key military facilities in the Asia-Pacific.

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 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,

Sir Keir Starmer clashed with Tory leader Kemi Badenoch over the deal to hand over the Chagos Islands to Mauritius.

The British government was grilled in parliament on Wednesday as it denied claims by Mauritius that a new deal to return the Chagos Islands changes the lease terms for a key US military base. In creating the base,