Mexico has deployed 6,000 members of its National Guard on its border with Guatemala in an attempt to stem the flow of migrants heading to the US.
Mexico’s Foreign Minister Marcelo Ebrard is in Washington trying to stop the US from placing trade tariffs on Mexican goods over illegal migration.
President Donald Trump has vowed to enact import duties of 5% on Monday if no agreement is reached.
After the latest talk, Minister Ebrard said he was “an optimistic man.”
He said forces would be stationed on Mexico’s southern border with Guatemala to prevent migrants entering the country.
President Trump wants Mexico to stop the hundreds of thousands of mostly Central American migrants who have been seeking entry to the US this year.
The president announced the planned Mexico tariffs last week on Twitter, catching members of his own party and financial markets unawares.