The violence which erupted in Mexico on Sunday is among the worst the country has known in years
Mexico's co-hosting of this summer's Fifa World Cup could be compromised by the eruption in drug cartel violence which began yesterday, experts have told BBC Sport.
The Jalisco New Generation (CJNG) drug cartel - one of the country's most powerful and feared criminal organisations - has engaged in gun shootouts with the Mexican military, blocked roads and burned vehicles in response to the killing of its leader Nemesio Oseguera Cervantes, better known as "El Mencho", in an army operation.
Violence began in the central-western Jalisco state - where a code red security situation has been declared - and has now spread to at least a dozen more regions, with videos posted online showing gunmen patrolling streets and smoke billowing over cities.
Guadalajara, capital city of Jalisco and home to more than a million people, is scheduled to host four matches at this summer's tournament. Another five are scheduled in Mexico City, and four in Monterrey.
