Britain is considering further support measures for agricultural food producers and trying to find a solution for supermarkets as part of its Brexit talks with the European Union over trade to Northern Ireland, a minister said.

Robin Walker, the junior minister for Northern Ireland, told the House of Commons further details should be announced shortly on support for agrifood producers, who will face checks and paperwork demands to send goods to the North from 1 January.

"There remain important outstanding issues to be resolved in discussion with the EU," he said.

"For example, we are seeking specific solutions to supermarkets and on the classification of which goods are in genuine and substantial risk of entering the EU market, through the joint committee."

Earlier, Britain's business minister said the UK hopes to get a Brexit trade deal but the European Union must understand that it is now dealing with a sovereign nation

"I hope that we will end up with a free trade agreement," Alok Sharma told Sky News.

"We have made progress but there is still someway to go and we need to make sure that the EU understands that the UK is a sovereign nation and that's the basis on which our arrangement with the EU is in the future."