Peru's President Dina Boluarte announced the return of the country's ambassador in Mexico in response to comments from her Mexican counterpart branding her government as unconstitutional.
Boluarte said the remarks made earlier on Friday by Mexican President Andres Manuel Lopez Obrador about her administration go against the international right to non-interference.
Mexico's Foreign Ministry did not immediately reply to a request for comment.
Boluarte ascended to the South American country's presidency on December 7 after former President Pedro Castillo was impeached following an attempt to dissolve Congress.
Boluarte accused Lopez Obrador of backing Castillo's attempt at a "coup d'etat."
"With his statements, Mr Lopez violates the principle of international law about non-interference in internal affairs, as well as those referring to the defence and promotion of democracy," she said in a television address.
Lopez Obrador told a news conference on Friday that Mexico will keep supporting Castillo, as he was "illegally ousted."
Boluarte's remarks come after a meeting between Lopez Obrador and Castillo's wife, Lilia Paredes, in Mexico earlier this week.
Turkey has detained 11 people as part of an investigation into a fire that killed 79 people and injured dozens at a ski resort in the Bolu mountains, Justice Minister Yilmaz Tunc said on Wednesday.
The climate crisis and an unlimited expansion of artificial intelligence could be existential threats for humanity, United Nations Secretary-General Antonio Guterres said on Wednesday, adding AI should serve humanity and not the other way around.
Prince Harry claimed a "monumental" victory over Rupert Murdoch's UK newspaper group on Wednesday after the publisher settled his lawsuit, admitting unlawful actions at its Sun tabloid for the first time and paying substantial damages.
US President Donald Trump has pardoned Silk Road founder Ross Ulbricht, who was sentenced to life in prison for running an underground online marketplace where drug dealers and others conducted more than $200 million in illicit trade using bitcoin.
Israeli security forces backed by helicopters raided the volatile West Bank city of Jenin on Tuesday, killing at least nine Palestinians in what Prime Minister Benjamin Netanyahu called a, "large-scale and significant military operation".