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.

Around 10,000 troops have been deployed to restore order after violence spread across 20 of Mexico’s 32 states.

The killing of Nemesio Rubén Oseguera Cervantes in an operation in Jalisco state is likely sending "psychological shockwaves" through Mexico's drug cartels, a former high-place U.S. official told CBC News on Monday.

School was canceled in several Mexican states and local and foreign governments alike warned their citizens to stay inside following the army’s killing, and the violence it spurred.

Although Jalisco is hundreds of miles away, the UFC is actively monitoring the unrest there ahead of its event Saturday in Mexico City. In a travel-related memo sent Monday and obtained from multiple sources by MMA Junkie,

A wave of unrest in Jalisco followed the military action that killed a cartel leader, jeopardizing harvesting and packing operations in the state.