The Sinaloa Cartel is trying to become Mexico's most powerful cartel again

Group once led by El Chapo is grappling with the New Jalisco Generation Cartel

On Monday, the cartel set fire to cars and left a warning in the rival's home state

Sinaloa members also left poster that warned its rival: 'We’ve come for what belongs to us, you filthy possums'

The New Jalisco Generation Cartel was once an ally of the Sinaloa Cartel, but then rose to power as the strongest gang in Mexico in 2018

The criminal syndicate is led by Nemesio 'El Mencho' Oseguera-Cervantes, who is on the FBI's 10 most-wanted list

El Chapo's cartel is stepping up the bid to retain its position as the most powerful criminal organization in Mexico.

The Sinaloa Cartel sent a warning message to their main rivals, the New Jalisco Generation Cartel, by setting cars on fire in the state where they are based, according to news reports.

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They also hung up a huge poster outside the parking lot town of Zapopan, which read: 'We’ve come for what belongs to us. We do not steal. We do not extort. We do not kidnap. We are coming for everything you filthy possums.'

It is the latest sign that the rival gangs are stepping up the violence to gain total dominance.

The Sinaloa Cartel is seeking to overtake the New Jalisco Generation Cartel as the most powerful group in Mexico. On Monday night it left the following message which read: 'We’ve come for what belongs to us. We do not steal. We do not extort. We do not kidnap. We are coming for everything you filthy possums'

The Sinaloa Cartel allegedly set cars on fire at a parking lot in Zapopa, a city in the Mexican state of Jalisco, as a notice to the New Jalisco Generation Cartel

Ismael 'El Mayo' Zambada García, the new leader of the Sinaloa Cartel, has given his henchmen the green light to hunt down members of the ew Jalisco Generation, Mexican news outlets have reported.

The DEA once considered the Sinaloa Cartel to be the biggest threat to the United States.

But in the last few years, especially since El Chapo's arrest, they have lost their dominance, and the New Jalisco Cartel have taken over.

They are still operating in the states of Chihuahua, Sonora, Coahuila, Baja California, Baja California Sur and Sinaloa.

With El Chapo behind bars, the Sinaloa Cartel is being led by El Mayo, a 71-year-old wanted by the FBI.

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Nemesio 'El Mencho' Oseguera-Cervantes was once an ally of El Chapo and El Mayo. His group, the New Jalisco Generation Cartel, rose to power in 2018 to become the most powerful cartel in Mexico

El Mayo, who along with El Chapo funded the criminal faction in the 1980's, for the most part has kept a low profile. He has rarely been seen in public and is now in hiding.

The group is also spearheaded by El Chapo's two sons - Alfredo Guzman Salazar and Ivan Archivaldo Salazar.

According to La Opinion, El Mayo has enlisted 'Los Demonios' ['The Devils'] as their hired muscle to carry out some of its dirty work.

The New Jalisco Generation Cartel was once an ally of the El Chapo's and El Mayo's organization before it splintered off.

By 2018, the organization led by Nemesio 'El Mencho' Oseguera-Cervantes became the most powerful cartel in Mexico.

The Sinaloa Cartel, once commandeered by Joaquín 'El Chapo' Guzmán (center), is looking to claim its spot as Mexico's most powerful criminal organization and it once again sent a message to its rival, the New Jalisco Generation Cartel, on Monday night, when it burned a set of cars at a parking lot in the western state of Jalisco

Ismael 'El Mayo' Zambada García is the co-founder of the Sinaloa Cartel. With El Chapo behind bars in the United States, El Mayo is now leading gang along with two of El Chapo's sons

Pictures of Monday night's purported brazen attack shows the effect of an arson attack at a parking lot in western Mexican allegedly carried out by El Chapo's old cartel

El Mencho is one of the 10 most-wanted men on the FBI's list and the U.S. Department of Justice is offering a $10million reward for his capture.

The New Jalisco Generation Cartel is also been engulfed in an all out offensive against the Zetas Old School and the Santa Rosa de Lima Cartel, which has a major control the illicit sale of gasoline.

Tuesday's alarming incident took place the same night after police officer Édgar Fredery López Pérez, 34, died during a shootout with three men.

His partner was also wounded during the gun battle with the suspects, who all are under arrest.

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It's unknown if both incidents were related.

At least 22 assassinations have been reported in Jalisco since last Friday.