Officials say US travelers in certain regions of Mexico should continue to shelter in place on Monday, and airlines have canceled and rescheduled flights.

Explosions, roadblocks and gunfire have been reported throughout the state, after law enforcement actions on Sunday morning.

U.S. citizens are being urged to shelter in place amid unrest in Puerto Vallarta.

Smoke filled the sky above the swanky beach town of Puerto Vallarta, Mexico, as shops and cars were set ablaze by cartel members after the government killed a major drug kingpin Sunday, leaving tourists and residents cowering in fear.

The U.S. Embassy and Consulates in Mexico issued a security alert affecting Puerto Vallarta, Tijuana and more.

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

Two private jets and an 11-hour transatlantic journey from Madrid were among the flights that diverted due to cartel violence in Mexico.

A major Mexican resort town was under siege on Sunday and an airport was reportedly attacked after the leader of the brutal Jalisco New Generation Cartel was killed by the army on Sunday. Tourists in Puerto Vallarta were warned to stay indoors as narco gangs lashed out following the death of drug kingpin Nemesio “El Mencho” Oseguera Cervantes,