US Speaker of the House Nancy Pelosi has said she was given assurances from the UK Foreign Secretary that there will be no construction of physical barriers at the Irish border but that there are other issues.

Ms Pelosi met Dominic Raab on Capitol Hill last night and once again warned the UK that there will be no trade deal with the US if Brexit threatens the Good Friday Agreement.

Ms Pelosi told RTÉ News that she is respectful of what Britain decides for themselves, but said her phone exploded when news broke that the UK was seeking to amend the Withdrawal Agreement. 

She said: "We'll see where we go from here. I think we all understand each other."

On promises of a trade deal from US President Donald Trump, Ms Pelosi said "not so fast" adding that trade deals were a matter for Congress.

Mr Raab is in Washington this week in a bid to reassure the US on Brexit. He told CNN News this evening that the Good Friday Agreement was "not in jeopardy" and that Britain will not apply a hard border in Ireland. 

Last night, the Democratic presidential candidate Joe Biden warned that the Good Friday Agreement could not become a casualty of Brexit.

"Any trade deal between the US and UK must be contingent upon respect for the Agreement and preventing the return of a hard border. Period," he tweeted.

Also tonight, New Jersey Democratic Senator Bob Menendez tweeted his support for the US to deny Britain a trade deal if it broke international law.

He said: "The Good Friday Agreement matters. International law matters.

"The US response should be simple: If the UK does not abide by its commitments under the GFA then no US-UK trade deal."

Meanwhile, the UK and European Union made "some limited progress" during informal discussions in Brussels over a trade deal, the UK Government said tonight.

A spokesman said: "The UK's negotiating team had useful informal discussions with the EU this week as we seek to reach an agreement by mid-October on our future relationship.

"These covered a broad range of issues and some limited progress was made, but significant gaps remain in key areas, including fisheries and subsidies.

"We will continue to work hard to bridge those gaps in talks next week, without compromising our fundamental position of being an independent country."

Earlier, an EU spokesman had insisted Brussels was still negotiating in good faith, rejecting accusations by Britain's Prime Minister Boris Johnson, who has claimed the bloc has threatened to "blockade" food heading for Northern Ireland.

"Michel Barnier has shown... that even on extremely complex and politically sensitive issues, the commission, indeed the EU, negotiates in perfectly good faith," said Eric Mamer, the EU spokesman.

Also today, the were angry responses from the British haulage sector for the second day running, after a "washout" meeting on Brexit preparedness.

The Road Haulage Association said its meeting with Cabinet Office minister Michael Gove, who is in charge of preparations for the UK exiting the EU, fell "far short of our expectations".

Richard Burnett, chief executive of the RHA, said there was "no clarity" about the impending changes expected when the transition period ends after December 31.

"Whitehall meeting was a washout," he said in a statement. He also tweeted: "Today's meeting with Michael Gove fell far short of our expectations.

"The mutually effective co-operation we wanted to ensure seamless border crossings just didn't happen and there is still no clarity over the questions that we have raised."

It comes after Logistics UK  yesterday warned businesses would be dealt a "massive blow" if the UK government's Smart Freight system is not out of testing mode in January when Brussels' new border regulations come into force for exports from Britain.