Three cabinet ministers have publicly warned that Brexit should be delayed if Parliament does not approve a deal in the next few days.
Amber Rudd, Greg Clark and David Gauke made the comments to local media ahead of crucial votes in the Commons,
They said time was running out and that breakthrough in negotiations was needed sooner rather than later.
In a scathing response, Downing Street said their views on a no deal Brexit were "scarcely a secret".
"The PM is working hard to ensure we get a deal with the EU that allows us to deliver on the result of the referendum," it said in a statement.

Nepal to rebuild early-warning system on China border after deadly flood, sources say
US House passes bill to crack down on university boycotts of Israel
Kuwait air defences deal with Iranian missile, drone attacks
Spain's PM Sanchez says no evidence Morocco orchestrated Ceuta border surge
Two Palestinian teens killed in West Bank raid by Israeli settlers, army
Latest Indonesian free meal poisoning outbreaks affect 800, lawmaker says
Chinese students marooned in floods unleashed by Typhoon Saudel's rains
US and Iran exchange attacks as lull in war appears over
