Peru has declared Mexican President Claudia Sheinbaum a “persona non grata” who is unable to enter the country, days after severing ties with Mexico amid an escalating diplomatic dispute.

Peru’s Congress voted 63 to 34 on Thursday in favour of symbolically barring Sheinbaum from the country after her government granted asylum to former Peruvian Prime Minister Betssy Chavez, after she fled to the Mexican embassy in Peru’s capital Lima.

The designation of “persona non grata” is typically reserved for foreign diplomats and compels them to leave a host country, and is seen as a rebuke to their government.

President of Peru’s Congress Fernando Rospigliosi said the move was a show of support for the government and its decision to break off relations with Mexico, according to Mexico’s El Pais newspaper.

During a debate on Thursday, Ernesto Bustamante, an MP who sits on Peru’s Congressional Foreign Relations Committee, also accused Sheinbaum of having ties to drug traffickers.

“We cannot allow someone like that, who is in cahoots with drug traffickers and who distracts her people from the real problems they should be addressing, to get involved in Peruvian affairs,” Bustamante said, according to El Pais.

Chavez, who is on trial for her participation in an alleged 2022 coup attempt, earlier this week fled to the Mexican embassy in Lima, where she was granted political asylum.

Peru’s Foreign Minister Hugo de Zela called the decision by Mexico City an “unfriendly act” that “interfered in the internal affairs of Peru”.

Mexico’s Ministry of Foreign Affairs has maintained that it was acting in accordance with international law, and the move in “no way constitutes an intervention in Peru’s internal affairs”.

Lima has yet to offer safe passage for Chavez to leave the embassy and travel to Mexico.

Chavez, a former culture minister, briefly served as prime minister to President Pedro Castillo from late November to December 2022.

Charges against the former minister stem from an attempt by President Castillo in December 2022 to dissolve the Peruvian Congress before he was quickly impeached and arrested.

Chavez, who faces up to 25 years in prison if found guilty, has denied involvement in the scheme. She was detained from June 2023 until September of this year, and then released on bail while facing trial.