MONTERREY, Mexico (AP) — Two dozen gunmen burst into a casino in northern Mexico on Thursday, doused it with a flammable liquid and started a fire that trapped gamblers inside, killing at least 32 people and injuring a dozen more, authorities said.
The fire at the Casino Royale in Monterrey, a city that has seen a surge in violence this year, represented one of the deadliest attacks on an entertainment center in Mexico since President Felipe Calderon launched an offensive against drug cartels in late 2006.
"This is a night of sadness for Mexico," said federal security spokesman Alejandro Poire in a televised address. "An unspeakable, repugnant, unacceptable act of terror has been committed."
"These unspeakable acts of terror will not go unpunished," Poire said, adding federal authorities were aiding state forces in the investigation.
State police officials quoted survivors as saying about two dozen armed men burst into the casino, apparently to rob it, and began dousing the premises with fuel from tanks they brought with them. The officials were not authorized to be quoted by name for security reasons.
With shouts and profanities, the attackers told the customers and employees to get out. But many terrified customers and employees fled further inside the building, where they died trapped amid the flames and thick smoke that soon billowed out of the building.
Angel Flores, a commander of the Monterrey Green Cross rescue service, said that 28 bodies had been recovered from the casino and that more were likely to be recovered. He said most died of asphyxiation.
Other Green Cross and Nuevo Leon Civil Defense rescue workers later said 32 bodies had been recovered and video footage showed workers continuing to remove bodies well into the night.
Monterrey Mayor Fernando Larrazabal said many of the bodies were found inside the casino's bathrooms, where employees and customers had locked themselves to escape the gunmen.
While there was no immediate information linking the attack to drug cartels, Monterrey has seen bloody turf battles between the Zetas and Gulf cartels in recent months. Once Mexico's symbol of development and prosperity, the city is seeing this year's drug-related murders on a pace to double last year's and triple those of the year before.
Maria Tomas Navarro, 42, stood weeping at the edge of the police tape stretched in front of the smoke-stained casino building. She was hoping for word of her brother, 25-year-old Genaro Navarro Vega, who had worked in the casino's bingo area.
Navarro said she tried calling her brother's cellphone. "But he doesn't answer. I don't know what is happening," she said. "There is nobody to ask."
Larrazabal said the casino, in a well-off part of Monterrey, had been closed by authorities in May for building an expansion without a permit, but a judge later granted the owner an injunction to continue operating.
Initial reports said 11 people had been killed, but the death toll climbed as emergency personnel and firefighters searched the casino building. Medics treated survivors for smoke inhalation.
State police officials initially said witnesses reported hearing three explosions before the fire started, but later said a flammable material was used. The officials were not authorized to be quoted by name for security reasons.
The reports of explosions may have been the sound of the ignition of the liquid.
It was the second time in three months that the Casino Royale was targeted. Gunmen struck it and three other casinos on May 25, when the gunmen sprayed the Casino Royale with bullets, but no was reported injured in that attack.
Last month, gunmen killed 20 people at a bar in Monterrey. The attackers sprayed the bar with rounds from assault rifles, and police later found bags of drugs at the bar.
Associated Press Writer Kathy Corcoran contributed to this report