European Union leader Donald Tusk on Wednesday condemned those calling for Brexit with no idea how to carry it out, saying he hopes Theresa May now has a "realistic" plan.
The British prime minister is due in Brussels on Thursday to discuss ways to ensure Britain's orderly withdrawal from the EU and avoid what Tusk warned would be a "fiasco."
German Chancellor Angela Merkel said during a trip to Tokyo on Tuesday: "Two months is not a long time but there is still time, and this should be used by all sides."