Boris Johnson's Irish Sea tunnels and roundabout have sunk serious plans for bridge claims professor

The world’s first undersea roundabout, part of an 11km Atlantic tunnel connecting the Faroe islands of Eysturoy andStreymoy and built last year at a cost of £120m

According to the Belfast Telegraph, Boris Johnson's plan to build three tunnels under the Irish Sea, with a roundabout underneath the Isle of Man, has put an end to any serious discussion about a road or rail crossing to Northern Ireland, according to one of the UK's leading architects.

Professor Alan Dunlop, who drew up an earlier plan to construct a bridge from Scotland to Northern Ireland, has rubbished the Prime Minister's latest idea for a link.

And the SDLP's Infrastructure Minister Nichola Mallon has written to the PM urging him to ditch the idea altogether.