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

Air Transat, Air Canada and WestJet airlines say they plan to resume operations to and from Puerto Vallarta on Tuesday, as the situation stabilizes following violence and unrest due to killing of the leader of a major drug cartel.

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

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

The killing of powerful cartel leader ‘El Mencho’ led to hours of roadblocks with vehicles and businesses set on fire in Puerto Vallarta, Guadalajara and elsewhere.

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.

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.