Former Cabinet minister Peter Hain: Border betweeen the North and South must remain open

"Otherwise I believe the peace process could unravel, as indeed Bertie Ahern, the former Taoiseach and so important to the success of that process has said."

A Labour former Cabinet minister will seek to force major changes on the Brexit Bill claiming he has a mandate despite being an unelected peer.

Peter Hain is to demand the UK remains in the single market and retains a completely open border between the North and the South when legislation reaches the House of Lords on Monday.