President Donald Trump and Colombian President Gustavo Petro defended their views on social media and imposed tariffs on each other’s goods.

Gustavo Petro said the United States should not treat Colombian migrants as criminals and that he had already turned away U.S. military flights carrying deportees.

The U.S. and Colombia pulled back from the brink of a trade war on Sunday after the White House said the South American nation had agreed to accept military aircraft carrying deported migrants.