Two men armed with a machine gun and a handgun opened fire in a bar on the outskirts of the Mexican tourist resort of Cancun on Thursday, killing six people and wounding five, the office of the state's attorney general said.
Cancun, a major tourist destination on Mexico's Caribbean coast, has largely escaped the drug-related violence that has racked Acapulco, a faded tourist hot spot on the Pacific coast.
Last month, six Spanish women were raped by hooded gunmen who forced their way into the Acapulco beach house the women had rented.
Mexican President Enrique Pena Nieto has vowed to reduce the violence that soared after his predecessor, Felipe Calderon, launched an assault on drug cartels.
More than 70,000 people have been killed in drug-related violence in Mexico since 2007.