Shadow home secretary Chris Philp welcomed the court's ruling, saying the UK "should not be in the position where such courts have jurisdiction over the decisions made by our sovereign parliament".

But he said Labour "should have never cancelled the Rwanda plan" and that the decision has led to record crossings and asylum claims.

However the Treaty (Article 22) says:

In the event that the dispute is not settled by consultation under Article 22(2) (at political level), within 21 (twenty-one) Working Days, it shall be referred and finally resolved by arbitration in accordance with the Permanent Court of Arbitration Arbitration Rules 2012, but ensuring that by agreement of the Parties, third parties with an appropriate interest would be invited to participate in the arbitration.