Theresa May will meet European leaders and EU officials later for talks aimed at rescuing her Brexit deal.
She will hold talks with Dutch PM Mark Rutte and Germany’s Angela Merkel after postponing MPs’ final vote on the deal.
The UK PM has said she needs “further assurances” about the Northern Ireland border plan to get Commons backing.
European Council President Donald Tusk insisted the EU would “not renegotiate” but said leaders would discuss how to help “facilitate UK ratification”.
Meanwhile, the pound dropped to its lowest level for almost two years amid the growing risks to the British economy from political paralysis over Brexit and on a no-deal scenario.