A NOTORIOUS Mexican cartel kingpin, former head of El Chapo's empire, has admitted flooding the US with cocaine over fifty years - and said: "I'm sorry."

Ismael “El Mayo” Zambada , 77, pleaded guilty to drugs trafficking charges after one of the most prolific organised crime careers in history .

El Mayo was the co-founder of the Sinaloa Cartel - the most powerful criminal organization in Mexico with immeasurable reach around the world.

The cartel drove a booming supply of cocaine , heroin and other drugs in the US and brought rank violence upon Mexico .

El Mayo told the Brooklyn federal court: “I apologise for all of it, and I take responsibility for my actions.”

He also apologized to anyone who has "suffered or been affected by my actions".

Zambada founded the cartel

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