A post-Brexit trade deal with the United States would not be enough on its own to make up for leaving the European Union, British justice minister David Lidington said on Sunday.

A Union Jack flag flies near the Elizabeth Tower, commonly referred to as Big Ben, at the Houses of Parliament in central London, U.K., on March 29, 2017.

U.S. President Donald Trump on Saturday met with British Prime Minister Theresa May and said he hoped the United States can quickly seal a bilateral trade deal.

"It wouldn't be enough on its own, no," Lidington told the BBC's Andrew Marr Show.

"But it would be a very good thing to have - as would trade deals with the emerging economies of Asia and Latin America."

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