Mexican Finance Ministry says it has not received evidence to support claims against CIBanco, Intercam and Vector banks.
The United States has imposed sanctions on three Mexican banks, alleging they had been used to launder money for drug cartels.
On Wednesday, the US Department of the Treasury tied the banks – CIBanco, Intercam Banco and Vector Casa de Bolsa – to the cross-border trafficking of the deadly synthetic drug fentanyl.
It accused them of playing “a longstanding and vital role in laundering millions of dollars on behalf of Mexico-based cartels and facilitating payments for the procurement of precursor chemicals needed to produce fentanyl”.
The sanctions are part of a wider pressure campaign by the administration of US President Donald Trump against Latin American gangs, criminal networks and drug traffickers.
