First Minister Paul Givan is expected to announce his resignation by the end of the week, a senior DUP source has said.
It comes amid the party’s protest against the Northern Ireland Protocol and follows his colleague Edwin Poots’s decision to order a halt to agri-food checks at Northern Ireland’s ports.
The European Commission has said the decision by DUP Agriculture Minister Mr Poots to stop the checks creates “further uncertainty and unpredictability”.