Genaro García Luna, once Mexico's security minister, was found guilty of taking millions of dollars from Mexico's biggest crime group, the Sinaloa drug cartel.

García Luna - who was arrested in the state of Texas in 2019 - had pleaded not guilty.

The 54-year-old could face up to 10 years in prison.

The verdict came after a four-week trial and three days of jury deliberation in the US District Court in Brooklyn, New York.

Prosecutors said the former head of the Mexican equivalent of the US Federal Bureau of Investigation accepted millions of dollars stuffed in briefcases and delivered by members of Joaquín "El Chapo" Guzmán's Sinaloa drug cartel.

He is the highest-ranking Mexican official ever to be tried in the US.

García Luna served as public security chief during the administration of President Felipe Calderon between 2006 and 2012. Before that, he led the Federal Investigation Agency from 2001 to 2006.

The ex-minister - widely considered the architect of Mexico's war on drugs - was said to have shared information with the Sinaloa drug cartel about its rivals and warned the group about law enforcement operations.

García Luna denied the allegations.

The claims against García Luna's involvement with the Sinaloa cartel first came to light during a trial against Guzmán, who was sentenced to life in prison plus 30 years in 2019.

A former cartel member named Jesus "Rey" Zambada testified during Guzmán's trial that he had delivered millions of dollars in payments to García Luna.

The case against the former minister was built on the testimony of nine cooperating witnesses, mostly convicted cartel members, including Zambada.

García Luna declined to testify at the trial, but his wife, Linda Cristina Pereyra, took the stand and attempted to downplay their finances and lifestyle.

In her closing argument, US prosecutor Saritha Komatireddy said the Sinaloa cartel could not have built a "global cocaine empire" without García Luna's aid.

"They paid the defendant bribes for protection," she said. "And they got what they paid for."

García Luna's lawyers argued the witnesses were testifying against him to "save themselves" after committing "horrific crimes".