Politicians from the Unionist tradition, The Irish Times writes, have responded with annoyance and dismay after a junior Sinn Féin Minister told a Stormont committee that there will be new physical border posts at Northern Ireland ports.

An “Irish Sea border is now a certainty”, the Ulster Unionist Party leader Steve Aiken said on Thursday following comments by Sinn Féin Minister Declan Kearney that border posts are to be created to deal with trade coming into Northern Ireland from Britain.

Mr Kearney told the Assembly’s Executive Office scrutiny committee that the “British government has confirmed it will urgently put in place detailed plans with the Executive, which does include the physical posts at ports of entry”.

(The Minister) Mr Kearney informed former Sinn Féin MEP Martina Anderson that the British government had signalled that “delivery on that infrastructure needs to start as soon as possible”.

“The British government has indicated that it will provide advice on the requirements and the funding to put that in place.”

Ms Anderson, in her questioning of Mr Kearney on Wednesday, indicated the posts would be at Belfast, Larne and Warrenpoint and would be designed to accommodate additional customs officers and vets, who would be dealing with livestock.

More on this Brexit development here.