The Prime Minister's plan to announce this morning that he was handing the archipelago to Mauritius was thrown into chaos after a High Court injection was made in the dead of night.

Just hours before the crucial moment, it emerged a High Court has granted an injunction stopping the negotiations being concluded.

A ceremony transferring sovereignty of the British Indian Ocean Territory of the Chagos Islands to Mauritius was called off at the last moment after the High Court in London…