NEW YORK (Reuters) - Canada is not making concessions needed to reach a deal with the United States for a trilateral NAFTA pact and is running out of time before Washington proceeds with a Mexico-only agreement, a top U.S. official said on Tuesday.

U.S. President Donald Trump’s administration recently began increasing the pressure on Canada, urging it to conclude a deal by Sunday or face exclusion from a revised North American Free Trade Agreement.

A spokesman for Canadian Foreign Minister Chrystia Freeland brushed off the latest remarks from the United States, saying Canada was not interested in focusing on timelines.

U.S. Trade Representative Robert Lighthizer said there was “some distance” between the two sides on issues such as access to Canada’s dairy market and how best to settle trade disputes.

“The fact is, Canada is not making concessions in areas where we think they’re essential,” he said at the Concordia Summit in New York.

“We’re going to go ahead with Mexico,” he said. “If Canada comes along now, that would be the best. If Canada comes along later, then that’s what will happen.”

He added: “We’re sort of running out of time.”

But Freeland’s spokesman, Adam Austen, said Canada would only sign a good deal.

“Our focus is the substance, not timelines. We will continue to negotiate with a view to getting a deal that is in Canada’s national interest,” he said.

FILE PHOTO: The flags of Canada, Mexico and the U.S. are seen on a lectern before a joint news conference on the closing of the seventh round of NAFTA talks in Mexico City, Mexico, March 5, 2018. REUTERS/Edgard Garrido/File Photo

Mexican government spokesman Eduardo Sanchez said on Twitter late on Tuesday that Mexican President Enrique Pena Nieto and Canadian Prime Minister Justin Trudeau, held a bilateral meeting on the sidelines of the U.N. General Assembly.

“The leaders exchanged points of view on the process of renegotiation of NAFTA,” said Sanchez.

Lighthizer and Freeland are also in New York for the U.N. meeting but it is unclear whether they will meet.

U.S. automakers and congressional aides now believe a deal with Canada is not possible by the deadline, which they said would most likely prompt the United States to move ahead with a bilateral agreement with Mexico.

But they also predicted new talks with Canada in another attempt to settle outstanding issues before the signing with Mexico, which would be set for Nov. 30.

‘HOPEFULLY END UP WITH SOMETHING’

The Trump administration has said the text of an agreement is needed by Sunday to allow the current Mexican government to sign it before it leaves office at the end of November.

Trump has demanded major changes to NAFTA, which he has said caused U.S. manufacturing jobs to move to low-wage Mexico. Markets are nervous about the impact on a deal that underpins $1.2 trillion in annual trade.

Canadian officials have said that despite the U.S. threats to go it alone with Mexico, they do not believe Trump can by himself turn the 1994 pact into a bilateral deal.

U.S. business groups, alarmed by the potential disruption to the three increasingly integrated economies, have lobbied the White House to keep NAFTA as a trilateral deal.

Trudeau, who has repeatedly stated he would rather walk away from NAFTA than sign a bad deal, spoke before Lighthizer at an event hosted by the Council on Foreign Relations in New York and took a more cautious tone.

“They (the United States and Mexico) made certain agreements,” he said. “I think there’s a possibility there to build on what they agreed.”

“With Mexico, we’re not going to say: ‘No deal’ because of Canada,” Lighthizer said. “That doesn’t make any sense at all, so hopefully we’ll end up with something with Canada.”