Financial records allegedly belonging to a Mexican drug cartel leader have surfaced, appearing to document ties between criminal organizations and government authorities, according to a Financial Times report.

The documents, described as a 'narco-ledger,' purportedly detail financial transactions that suggest connections between cartel operations and officials within Mexican government institutions. The authenticity and scope of these records could not be independently verified.

Mexico has long struggled with corruption allegations involving drug trafficking organizations and government officials at various levels. Such allegations have been a persistent challenge for Mexican administrations seeking to combat organized crime while maintaining institutional credibility.

The reported ledger adds to ongoing concerns about the penetration of drug money into Mexican political and law enforcement systems. Previous investigations and prosecutions have revealed instances where cartel funds allegedly influenced government operations.

Mexican authorities have not yet responded to requests for comment regarding the specific allegations contained in the reported documents. The government has previously denied systematic corruption while acknowledging isolated cases of official misconduct related to drug trafficking.