London: British Prime Minister Boris Johnson is expected to fly to Belgium capital Brussels to hold talks on a post-Brexit deal with the European Commission President Ursula von der Leyen.
Major disagreements remain on fishing rights, business competition rules and how a deal will be policed.
At the dinner, Johnson will work through a list of the major sticking points with Von der Leyen, who is representing the leaders of the 27 EU nations.
Any progress the two leaders make will not mean a deal is done but rather pave the way for more talks between officials, he said.
Johnson will take part in Prime Minister's Questions before travelling to the Belgian capital. EU leaders are due to meet for a summit of their own on Thursday.
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A British government source said progress at a political level may allow the negotiations - between the UK's Lord Frost and EU's Michel Barnier - to resume over the coming days.