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.
US President Donald Trump said on Friday he had cancelled a previously expected second wave of attacks on Venezuela following cooperation from the South American nation.
Storm Goretti battered northern Europe on Friday, knocking out power to thousands of homes, shutting schools and suspending rail services in France, Britain and Germany as heavy snow and gale-force winds compounded a week of freezing weather.
At least one person was killed and 34 others were missing after a landfill collapsed in the city of Cebu in the central Philippines late on Thursday afternoon, officials said.
Russian drones attacked targets in Kyiv early on Friday, killing four people, injuring at least 19 and inflicting considerable damage on dwellings and infrastructure, Ukrainian officials said.