Mexico’s Attorney General’s Office on Friday summoned former Sinaloa Gov. Rubén Rocha Moya and Chihuahua Gov. Maru Campos to testify as witnesses in separate federal investigations that have intensified political tensions in the country.

The office, known as the FGR, said Rocha — currently on leave from office — was summoned following accusations by U.S. authorities that he and 10 other officials were complicit in drug trafficking activities linked to the Sinaloa Cartel. The allegations triggered controversy within Mexican politics, fueling criticism over U.S. involvement in Mexican affairs and sparking accusations of foreign interventionism.

Campos was summoned in connection with an incident in the northern state of Chihuahua in which two alleged Central Intelligence Agency agents died during an operation on Mexican soil that federal authorities said had not been officially authorized or disclosed to Mexico’s national government.

The case has become another source of political conflict, with members of the ruling MORENA party accusing Campos of allowing foreign interference in domestic affairs. President Claudia Sheinbaum denied that either summons was politically motivated. Campos said she would comply with the request but argued the summons was politically driven. Rocha stated he would appear before authorities, telling reporters he was “a decent man” with nothing to fear.

Federal authorities have also summoned several other public officials for questioning, including the former mayor of Culiacán.