Miguel Angel Rodriguez, the foreign minister of Peru, announced his resignation on Friday, making him the fourth senior diplomat to do so under President Pedro Castillo, whose administration has been plagued by political unrest.
Castillo, who has faced six criminal investigations regarding alleged corruption and has survived two impeachment attempts since assuming office in July 2021, has seen a number of important appointments resign this year.
Anibal Torres, a former prime minister, was the fourth member of Castillo's administration to quit office last month. The government has also lost seven interior ministers.
Rodriguez posted a letter on the Twitter account of the foreign ministry announcing his "irrevocable resignation from the office."
Local media recently reported disagreements between Rodriguez and Castillo, including over several high-profile environmental issues.
Castillo’s first foreign minister was former guerrilla fighter Héctor Béjar, who lasted just 19 days in the post.
The leftist president, who has been under nonstop fire from his right-wing rivals, appeared before prosecutors on Monday to respond to accusations that he ran a graft network from his office, dismissing the claims as a political ploy to unseat him.
He is serving a five-year term that ends in 2026 and cannot be tried while in office.
Peru is no stranger to instability: it had three different presidents in five days in 2020, and five presidents and three legislatures since 2016.