Mexico cartel used explosive drones to attack police
Over the past weeks, hundreds of residents have been fleeing the city in fear as the CJNG and a rival group calling itself United Cartels (Cárteles Unidos), fight for control of the city.
Earlier this month, eight mutilated bodies were found in the area after a particularly deadly fight between the two groups.
Aguililla is the birthplace of CJNG leader Nemesio Oseguera Cervantes, also known as "El Mencho".
"El Mencho" is one of Mexico's most wanted men and the US Drug Enforcement Administration is offering a $10m (£7.2m) reward for information leading to his capture.
His cartel is one of the most powerful in the country and has been behind some of the deadliest attacks on Mexican security forces, such as a 2015 ambush in Jalisco which left 15 officers dead.
It has spread from his original power base in the state of Jalisco to have an almost nationwide presence.
Security officials say it was also behind the brazen assassination attempt on Mexico City's police chief, Omar García Harfuch, last June.
The cartel is believed to have further stepped up its attacks on the security forces in retaliation for the extradition to the United States of El Mencho's son, Rubén Oseguera González, known as "Menchito" (Little Mencho), on drug trafficking charges.