Britain and the European Union on Thursday reiterated their commitment to resolve post-Brexit trade frictions over the Northern Ireland border in the wake of a row over Covid-19 vaccines.
Senior British minister Michael Gove and European Commission Vice President Maros Sefcovic released a joint statement after they met on Thursday, saying they had "a frank but constructive discussion".
They added they would "spare no effort" to implement solutions agreed in December under the so-called Northern Ireland Protocol, but did not provide details.
Britain's exit from the EU's trading orbit in January has led to significant disruption to trade between Northern Ireland and the rest of the United Kingdom, straining relations as London and Brussels hold each other responsible for the problem.
The dispute revolves around the EU's insistence on Britain honouring its withdrawal treaty which left the British province of Northern Ireland within the EU's single market sphere due to its open land border with Ireland, meaning a customs border in the Irish Sea dividing the province from mainland Britain.
Gove, who last month threatened that London would consider "all instruments at its disposal" if it did not secure the necessary concessions on Northern Ireland, met Sefcovic in London late on Thursday.
On the eve of the talks, Sefcovic had ruled out most of the concessions that Britain had asked for, saying in a letter to Gove that "blanket derogations ... cannot be agreed beyond what the Protocol foresees already."
Sefcovic, who had said on his way to the talks that the implementation of the protocol is a "two-way street", said the talks were constructive. Irish Foreign Minister Simon Coveney said on Twitter it was "good day's work".
Irish Prime Minister Micheal Martin, whose country - an EU member state - has been central to the talks, had summoned both sides to "dial down the rhetoric."
"We just need to calm it, because ultimately we want the United Kingdom aligning well with the European Union. We want harmonious, sensible relationships," he told RTE radio.
Britain has stepped up efforts to extract concessions from the EU over Northern Ireland's trade arrangements since the European Commission sought briefly last month to stop Covid-19 vaccines being delivered from Ireland into Northern Ireland.
The Commission cited a shortfall of vaccines promised for the EU, but after an uproar broke out, it reversed its move to invoke Article 16 of the Brexit divorce deal's Northern Ireland protocol.
FRAUGHT ISSUE OF BORDERS
The protocol seeks to preserve the open Irish border - a crucial component of a 1998 peace deal that largely ended sectarian conflict in Northern Ireland - while at the same time preserving the integrity of the EU's single market.
In the letter ahead of Thursday's talks, Sefcovic rejected calls for more time, until Jan. 1, 2023, for British supermarkets and their suppliers to adjust to the new customs border in the Irish Sea for goods shipped to the province, including chilled meat, parcels and medicines, from the rest of the United Kingdom.
Sefcovic said the EU was examining more flexibility on steel but that on the issues of pet travel between mainland Britain and Northern Ireland, and of movements of seed potatoes and other plants, any flexibility would entail the United Kingdom committing to align with EU single market rules.
Britain left the EU single market on sovereignty grounds. Some EU diplomats say Prime Minister Boris Johnson's government has not fully acknowledged the inherent trade-offs between regulatory autonomy and market access.
An EU diplomat, speaking on condition of anonymity, said there was growing concern in Brussels that the Irish government was trying to play both sides. "It is a bit surprising what is coming out of Dublin in recent weeks. There is no aggressive rhetoric out of the EU," the diplomat said.
"It would be rather risky if the Irish government were to be seen as playing with European goodwill and solidarity."