At least 27 people died when fire swept through the Rong Beer Na Lat Phrao pub in Bangkok's Chatuchak district on a Sunday night, according to BBC. More than 70 others were injured, with at least 25 in critical condition, per the same source — figures that rose from initial reports by Reuters and Al Jazeera as hospitals updated casualty counts.

Thai police are investigating possible negligence on multiple fronts. An electrical short circuit has been cited as a possible ignition source, according to BBC. At the same time, Reuters reports that beer crates and tables blocked fire exits inside the venue, and police are examining whether doors were locked when the flames broke out. A third line of inquiry concerns flammable materials used in construction or decoration. The Thai Enquirer noted in a subsequent post that investigators are examining acoustic foam — sound-dampening material installed on walls and ceilings — which can ignite rapidly and produce thick, toxic smoke.

No official cause has been confirmed. Thai authorities have not announced when their investigation will produce conclusions.

The pattern of potential causes being examined here — electrical fault, blocked exits, combustible interior surfaces — mirrors patterns seen in nightclub fires across Southeast Asia and globally. Acoustic foam is cheap to install and controls noise well, but it burns readily and generates dense smoke much faster than standard building materials. When exits are blocked or locked, the time people have to escape shrinks dramatically. This is why investigators treat exit obstruction as a serious aggravating factor, separate from whatever sparked the fire in the first place.

Thailand's Ministry of Interior and Bangkok Metropolitan Administration have updated fire-safety codes for entertainment venues after previous incidents. Enforcement, however, has been inconsistent — particularly in smaller bars operating in mixed-use buildings like those common in Chatuchak. The public record does not yet show whether Rong Beer Na Lat Phrao had passed recent safety inspections or what those inspections examined.

A death toll of 27, with over 70 injured and a significant portion in critical condition, places this incident among the deadlier nightlife-venue fires in Southeast Asia in recent years. The final number may shift as hospitals update the status of those still critically injured.

The negligence investigation will likely shape what happens next. If police find that exits were deliberately blocked or locked, or that flammable materials were installed in violation of existing safety codes, owners or operators could face criminal charges — a pattern seen in comparable fires elsewhere. If the short circuit proves to have been an unforeseeable electrical fault with no code violations attached, the response is more likely to involve stricter regulations than prosecutions. Multiple potential contributing factors make a single clear explanation unlikely, and Thai authorities have offered no timeline for completing the full inquiry.