The killing of Mexican cartel leader Nemesio “El Mencho” Oseguera Cervantes on Sunday set off a wave of retaliatory violence from his gunmen, affecting areas popular with foreign tourists such as Puerto Vallarta and Guadalajara.

While no airports have been closed in Mexico, roadblocks are impacting airlines, according to the U.S. Embassy. Here's what to know about travel.

By Leila Miller, Emily Green and Lizbeth Diaz Feb 22 (Reuters) - Within hours of the killing of Mexican drug lord Nemesio Oseguera, better known as El Mencho, in a military raid on Sunday, gunmen suspected to be his supporters blocked highways across several states and set cars and businesses ablaze.

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.

After cartel violence shut down flights and blocked roads in Puerto Vallarta, Americans are canceling vacations and rethinking future travel plans.

The Grosse Ile couple have been sheltering in place in Zona Romántica, a neighborhood in the southern part of Puerto Vallarta.

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

U.S. citizens are being urged to shelter in place amid unrest in Puerto Vallarta, one of Mexico's most popular tourist destinations. Flights in and out of the airport are also being canceled, delayed or diverted Sunday.