(BBC News): Boris Johnson is expected to announce later that the UK has reached an agreement with the EU over post-Brexit trade and security.
Officials in Brussels are believed to be finalising the details of a deal that will come into force when the UK leaves EU trading rules next week.
It follows months of often fraught negotiations between the two sides.
The PM will speak to European Commission President Ursula von der Leyen by phone to sign off the deal.
Mr Johnson is then expected to hold a press conference in Downing Street to announce it.
The announcement had been expected earlier, but it has been delayed while final haggling between the two sides continues.
Irish foreign minister Simon Coveney told RTE Radio there had been “some sort of last-minute hitch” over the small print of the fishing quotas agreement but a deal was still expected later.