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 called off plans for renewed military strikes on Iran at the last minute on Thursday, saying negotiations with Tehran had advanced to the highest levels of Iran's leadership and had been approved by a broad coalition of regional powers.
A US jet fired two missiles into the engine room of the tanker Jalveer off Oman on Thursday, US Central Command confirmed, as authorities said the 20 crew members were safe after the third strike on Indian-crewed tankers this week.
British defence minister John Healey quit on Thursday in a dispute over military spending, accusing Prime Minister Keir Starmer of failing to commit the government resources that are needed to defend the country at a time of heightened threat.
A false alarm at the Pentagon following an air quality warning briefly triggered a partial shelter-in-place order on Wednesday at the US military's headquarters, as first responders worked to rule out exposure to hazardous materials, officials said.
The United States will hit Iran "very hard tonight" and will soon take control of the Middle Eastern country's oil and gas infrastructure and markets, US President Donald Trump said on Thursday.
The UAE has launched a humanitarian initiative called 'Step of Hope' to provide prosthetic limbs for Palestinians who have suffered amputations during the ongoing conflict in the Gaza Strip.
Her Highness Sheikha Latifa bint Mohammed bin Rashid Al Maktoum, Chairperson of Dubai Culture and Arts Authority, has held a series of meetings and visits in Sweden aimed at strengthening cooperation in innovation, technology and economic development.