Visa appointments at the U.S. Embassy in Colombia were canceled Monday following a dispute between President Donald Trump and his Colombian counterpart Gustavo Petro over deportation flights from the U.

The U.S. Embassy in Colombia canceled Visa appointments on Monday with people seeking entry into the United States, the latest chapter in a nasty battle between the two countries sparked by Colombia’s initial refusal to accept military flights filled with deportees sent by President Trump.

While Colombia has avoided tariffs that would have a devastating effect on its economy, visa restrictions that were issued on Sunday by the US State Department are still in place.