Gunmen opened fire on former Solidaridad Mayor Miguel Ramon Martin Azueta in southeastern Mexico, killing his accountant, Quintana Roo state Attorney General Gaspar Armando Garcia Torres said.

Martin Azueta, who owns the El Quintanarroense newspaper, was traveling by car from Chetumal to the resort city of Cancun with his accountant, Rolando Gomez, and driver when gunmen began shooting from a taxi.

The attack occurred around 10:00 p.m. Tuesday about 10 kilometers (6.2 miles) from the police checkpoint on the outskirts of Playa del Carmen in the Riviera Maya, Garcia Torres said.

Martin Azueta, who served as mayor of Solidaridad from 1999 to 2002, was grazed by a bullet.

Gomez, who was sitting in the passenger seat, was hit by several rounds, while the driver, Hiram Osorio Hernandez, was not hurt, Garcia Torres said.

Martin Azueta and Hernandez told investigators they "never stopped" and that "the driver accelerated and they headed straight to a private hospital in Cancun, where the passenger died," the AG said.

Gomez was alive when he arrived in the emergency room but died from serious gunshot wounds to the chest, the hospital said.

The automobile has at least 14 bullet holes.

A group of suspected cartel hit men fired gunshots at current Solidaridad Mayor Filiberto Martinez's convoy on Sept. 14, but no one was killed or wounded.

The attack occurred on the same stretch of highway that links Cancun to the Riviera Maya.

The AG's office initially downplayed the incident, blaming it on confusion among the mayor's bodyguards.

Several drug trafficking organizations, including Los Zetas and the Gulf cartel, are battling for control of northern Quintana Roo.