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.

5 dead, more than 80 missing after Philippine ferry fire
US military says it struck vessel in Caribbean, killing 3
At least 14 killed in explosion at weapons depot in Syria
US hits five Iranian oil tankers after attack on Navy ships
UK gives air traffic provider a week to probe outage that halted flights
Serbia's President Vucic dissolves parliament, calls snap elections
With large crowds attending, Norway lays King Harald to rest
Jordan intercepts 18 Iranian ballistic missiles
