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

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

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

Cartel violence has erupted around Mexico, leading to flight disruptions.

Travel in Mexico has been severely impacted following the death of drug cartel leader Nemesio "El Mencho" Oseguera Cervantes during a military operation, causing widespread violence

U.S. citizens in the destination are urged to shelter in place as airlines cancel flights and ground transportation is suspended.

For 20 agonizing minutes, Jamie Boratynec crouched behind a door in a Puerto Vallarta hotel bathroom with staff while flashbangs and the sound of gunfire erupted on the streets outside of her hotel.

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.