Mexico on Friday said the U.S. Trump administration and Canada were making serious efforts to resolve trade policy differences after days of bickering, raising hopes of saving the North American Free Trade Agreement as a trilateral pact.

While details were scant, the apparent progress was enough to prompt Mexico and Washington to abruptly halt a plan to publish text of their own two-way trade deal to give Canada more time to join.

In Mexico, President-elect Andres Manuel Lopez Obrador told reporters that Washington had made a new counterproposal to Ottawa, adding that he would keep pushing for all three countries to be part of NAFTA.