MEXICO CITY - Mexico is willing to act as a mediator if the United States and Cuba agree to dialogue, President Claudia Sheinbaum said on Monday.

"If Mexico were to become a vehicle to facilitate communication between the United States and Cuba, both parties would agree," she said at a regular morning press conference following her phone conversation earlier in the day with US President Donald Trump.

"Mexico is in the best position to do so," she added, referring to acting as mediator.

In a post on social media on Sunday, Trump said, "No more oil or money will be sent to Cuba," and recommended the Cuban government make a deal with Washington "before it's too late."

Sheinbaum said that shipping Mexican oil to Cuba is legal within the framework of national sovereignty and for humanitarian purposes.

The humanitarian aid is "not new," and this policy has been supported by successive Mexican administrations, regardless of their political affiliation, she said.