Theresa May’s Brexit negotiator is on his way to Brussels to explore the scope for changes to the agreement on the UK’s future relations with the EU.
Olly Robbins is looking to see whether a key demand being made by Labour in cross-party talks can be satisfied.
But as cabinet discusses the state of the talks, Theresa May is facing calls from senior Conservative MPs not to agree a compromise with Jeremy Corbyn.
Ex-defence secretary Sir Michael Fallon said the process was a “blind alley”.
The Labour leader is also facing demands from his MPs to abandon the talks, which have been going on for more than a month with little apparent progress.
Attempts to find a cross-party compromise began after Theresa May’s Brexit deal was rejected three times by MPs.
The inability to agree on a way forward led the UK to miss its 29 March deadline for leaving the EU – the current date for departure is 31 October.