São Paulo, Brazil—Four people died Saturday when a group of armed men stormed an illegal underground casino in a residential neighborhood. Witnesses described hearing a burst of automatic gunfire erupt shortly after the group entered the building. The facility, which operated behind a nondescript facade, had been known to local residents as a place for illicit high-stakes gambling.

Police arrived to find a scene of chaos and destruction. The shooters had already fled the area, likely using vehicles waiting in the alley behind the building. Medical teams pronounced four men dead at the scene, while several others were treated for injuries sustained while trying to escape the gunfire.

State investigators believe the attack was a targeted hit linked to a power struggle between rival criminal organizations. The casino allegedly provided a lucrative revenue stream that both groups were desperate to control. This is the second violent incident at a clandestine gambling site in this district this year.

Local residents told reporters that they had alerted authorities about the suspicious activity at the house repeatedly over the last few months. They expressed frustration that the operation continued to run despite the complaints. Officials have promised an inquiry into why the site remained undetected by local enforcement teams.

Forensic experts spent the afternoon cataloging dozens of spent shell casings left on the floor of the gambling room. They are also analyzing security footage captured by neighboring homes to track the escape route of the gunmen. The building remains a crime scene as investigators look for evidence that might reveal the identities of the attackers.

Security presence in the neighborhood has been bolstered to prevent any further escalation. Families of the victims have gathered outside the site, waiting for news from the medical examiner. The atmosphere is one of intense anger and grief, with many demanding that the state dismantle these criminal networks immediately.

Government representatives have stated that they will prioritize the investigation into this attack. They have also signaled that they will begin a wider sweep of similar illegal operations across the city to prevent future violence. The safety of the community is currently at risk as long as these facilities continue to operate in the shadows.

The investigation is ongoing, and no arrests have been announced yet. Detectives are working around the clock to follow leads provided by the witnesses. The bodies were transported to the central morgue, and formal identification is expected to be released by Sunday morning.