Chagos Islands deal: Mauritius PM says UK faces paying more

“Once an agreement is reached, further details of the treaty will be put before both Houses for scrutiny and treaty ratification in the usual way,” a Number 10 spokesman said.

He said the UK would “only agree a deal that is in our national interests and protects our national security”.

The Mauritian PM said he was “confident” the new deal would be approved, saying UK Prime Minister Sir Keir Starmer had said he intends to “push ahead” with the renegotiated deal.

Speaking to Mauritian MPs on Tuesday, Ramgoolam railed against the former agreement, which he said was a “sell-out” for Mauritius.

“We have to be inflation-proof. What’s the point of getting money and then having half of it by the end? This is what would happen, we have made the calculations,” he said.

However, he did not reveal the exact amount the UK would pay, saying “I’m not in a position to give details but let me say something, that package was very badly negotiated”.

He said the old package had also been tweaked so the UK would pay more in “front-loading” at the beginning of the deal. “That also is being approved I think,” the Mauritian leader said.

Ramgoolam also said the UK would no longer be able to unilaterally act on a clause in the deal where the lease could be extended for 40 years.

Progress on the deal had been paused while the UK consulted new US President Donald Trump on the deal.

There had been efforts to get the treaty signed before Trump’s inauguration on 20 January. However, the UK changed course, saying it was “perfectly reasonable for the US administration to consider the detail” of any agreement.

On Tuesday, Downing Street reiterated it was “absolutely right” for the US to consider the deal.

US Secretary of State Marco Rubio had previously raised concerns, saying the deal posed a threat to US security, given China’s influence in the region. Mauritius has an economic relationship with China.

Ramgoolam’s words were also noted by the UK government’s political opponents on Tuesday,

Dame Priti Patel, the shadow foreign secretary, said Sir Keir “has the audacity to tell the British people they will foot the bill and pay for the indignity of his surrender of the Chagos Islands, as he isolates the new US administration by bending the knee to Mauritius and emboldening our enemies with his disastrous surrender deal”.

Tory leader Kemi Badenoch said the prime minister should “come to Parliament and be honest with MPs” about what she called a “foolish deal”.

Reform UK leader Nigel Farage also voiced opposition to the deal, saying if the UK ceded sovereignty of the Chagos Islands, “our value to America” would become “considerably reduced”.

The UK took control of the Chagos Islands, or British Indian Ocean Territory, from its then colony, Mauritius, in 1965 and went on to evict its population of more than 1,000 people to make way for the Diego Garcia base.

Mauritius, which won independence from the UK in 1968, has maintained the islands are its own, and the UN’s highest court has ruled, in an advisory opinion, that the UK’s administration of the territory is “unlawful”.

The Chagos islanders – some in Mauritius and the Seychelles, but others living in the UK – do not speak with one voice on the fate of their homeland.

Some have criticised the deal, saying they were not consulted in the negotiations.