The U.S. State Department warned U.S. citizens in Jalisco, Tamaulipas, Michoacan, Guerrero and Nuevo Leon states to remain in safe places due to the ongoing security operations.

Airlines have temporarily suspended flights to Puerto Vallarta due to a security situation following the death of drug lord 'El Mencho.'

In Puerto Vallarta, Mexico, plumes of black smoke could be seen rising as vehicles were set on fire on Sunday. The unrest is in connection with the killing of the powerful leader of the Jalisco New Generation Cartel,

MEXICO CITY — Mexican drug lord Nemesio Oseguera, commonly known as "El Mencho," has been killed in a military operation, two government sources familiar with the operation told Reuters on Sunday, as the Mexican government ramps up pressure on local cartels after U.S. intervention threats.

Mexico on Sunday said it killed "El Mencho," the leader of the Jalisco New Generation Cartel, in an operation in Tapalpa, Jalisco, a Mexican state known for trafficking fentanyl and other drugs to the United States.

Airlines canceled flights to parts of Mexico after the drug lord "El Mencho" was reportedly killed by the Mexican government, leading to violent clashes.

Mexican forces killed cartel boss "El Mencho" and seized rocket launchers capable of downing aircraft, revealing CJNG's extensive military arsenal.

By Drazen Jorgic MEXICO CITY, Feb 22 (Reuters) - Mexican drug lord Nemesio Oseguera, commonly known as 'El Mencho,' infamous for the bloody trail of bodies he left behind in battles with government forces and rival gangs,