(CNN) The fate of NAFTA became uncertain Friday when the United States and Canada failed to come to an agreement on rewriting the three-nation trade pact.

But negotiations will resume on Wednesday.

"We know a win-win-win agreement is within reach and that's what we're working towards," said Canadian Minister of Foreign Affairs Chrystia Freeland at a press conference Friday.

The US Trade Representative's office said talks with Canada would continue and that President Donald Trump has formally notified Congress of the trade deal he struck with Mexico earlier this week.

"Today the President notified the Congress of his intent to sign a trade agreement with Mexico -- and Canada, if it is willing -- 90 days from now. The agreement is the most advanced and high-standard trade agreement in the world," the statement said.

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