Claudia Ochoa Felix, 35, was found dead on Saturday in a home in Culiacan, in the Mexican state of Sinaloa, according to Spanish-language outlet Milenio.

Sinaloa Prosecutor General Juan José Ríos Estavillo said the man who was with her was not involved her death, and there is no suspicion of foul play.

It remains unclear what drugs were in her system.

Ochoa Felix was reportedly part of the Joaquin "El Chapo" Guzman's Sinaloa Cartel, and had been nicknamed the "Empress of Ántrax," for her leadership of a group of assassins named Los Ántrax, the New York Post reported.

A woman who was believed to be Joaquin "El Chapo" Guzman's lead assassin and was dubbed the "Kim Kardashian of organized crime" has died of an overdose, officials confirmed.

Claudia Ochoa Felix, 35, was found dead on Saturday in a home in Culiacan, in the Mexican state of Sinaloa, according to Spanish-language outlet Milenio.

Sinaloa Prosecutor General Juan José Ríos Estavillo said the man who was with her was not involved her death, and there is no suspicion of foul play.

"What we can assure is that the death specifically derived from a non-violent cause," Estavillo said.

#clau8af #sinaloa #emperatriz #belleza #buchonas #live #claudiaochoafelix A post shared by Living💋 Loving👠 Learning👙👗 (@operadasculiacangdl) on Sep 18, 2019 at 12:07am PDT Sep 18, 2019 at 12:07am PDT

#claudia8afelix #clau8af #antrax #sinaloacartel #culiacan #guadalajara #girls A post shared by Living💋 Loving👠 Learning👙👗 (@operadasculiacangdl) on Sep 19, 2019 at 12:35am PDT Sep 19, 2019 at 12:35am PDT

Police said that Ochoa Felix had gone to dinner and a club the night before her death.

When the man she was with woke up in the morning, Ochoa Felix was unresponsive. She was later pronounced dead. It remains unclear what drugs were in her system.

Read more: The wife of the notorious drug lord El Chapo is a former beauty queen who unwaveringly supports her husband

Ochoa Felix was reportedly part of the Guzman's Sinaloa Cartel, and had been nicknamed the "Empress of Ántrax," for her leadership of a group of assassins named Los Ántrax, the New York Post reported.

Guzman was convicted in February on all counts on an indictment that included charges of drug trafficking, conspiracy, and use of firearms.

Ochoa Felix was considered El Chapo's top assassin. U.S. law enforcement via AP

He was sentenced to life in prison in July for the crimes he committed as head of Mexico's Sinaloa cartel, the Western Hemisphere's most powerful organized crime syndicate.

Ochoa Felix was not part of any ongoing criminal investigations, according to the Daily Mail Online. She denied she was involved in the gang before her death..

She also worked as a model and was once romantically connected to Jose Rodrigo Arechiga, a high-ranking Sinaloa member who headed Los Ántrax before pleading guilty to drug trafficking charges in 2015.

Before her death, Ochoa Felix had a large presence on Instagram, with 295,000 followers.

While the page was private, she was known for posting selfies, photos of her jet-setting across the world, and images of guns, luxury cars, and homes, Daily Mail Online reported.