Theresa May is meeting European leaders and EU officials later for talks aimed at rescuing her Brexit deal.
She is holding talks with Dutch PM Mark Rutte and Germany's Angela Merkel after postponing a Commons vote on the deal, reports BBC.
The UK PM has said she needs "further assurances" about the Northern Ireland border plan to get backing from MPs.
European Council President Donald Tusk insisted the EU would "not renegotiate" but said leaders would discuss how to help "facilitate UK ratification", BBC reported.
Work and Pensions Secretary Amber Rudd said further talks with Brussels would focus on the Brexit "backstop" on the Irish border, which Mrs May earlier admitted had caused MPs "widespread and deep concern".
