Mary Ng says she can't guarantee that MPs will see a bill to ratify the new rade agreement before Parliament breaks for Christmas on Dec. 11.

As talks continued between the two sides in London, Foreign Secretary Dominic Raab said ``I think we are into the last week or so of substantive negotiations.''

If there is no deal, New Year's Day will bring huge disruption, with the overnight imposition of tariffs and other barriers to U.K.-EU trade.

Canada and Britain have struck a new trade deal, beating the Dec. 31 Brexit deadline that would have triggered new tariffs on a range of Canadian exports.

It added uncertainty to the negotiations as a deadline looms ever closer and both sides are still divided on three key issues.

Details of a new Canada and Britain trade deal -- currently facing a Dec. 31 deadline -- could be revealed in the coming days, according to a source.

British Prime Minister Boris Johnson has called the devolution of powers to Scotland "a disaster", a comment that played into the hands of Scottish nationalists as recent polls show a majority of Scots now support independence.

Prime Minister Justin Trudeau says "bandwidth" in the British government remains a challenge.

The House of Lords voted to strip clauses ministers say are needed to protect Northern Ireland, but would also break international law in a "specific and limited" way.

The new deal comes as Britain continues to struggle to agree on a pact with its closest trading partners in the European Union.