Gas leak blamed as Athens rental block collapses, killing six near the Acropolis

Six people have been killed in a suspected gas explosion that tore down a residential building in central Athens, including a British national and four American holidaymakers staying in a short-let apartment inside it. The dead also include a Greek man and woman, believed to be an elderly couple who resided in the same building, in the Plaka district on the edge of the city's historic tourist centre.

Emergency services were called to a small street in Plaka on Friday evening after the blast, which completely flattened a three-storey building and sent debris across the road. Photographs taken at the scene on Saturday showed the property reduced to a heap of rubble, with household furniture, bedding and other personal belongings scattered among the wreckage and the shells of neighbouring properties left heavily damaged on either side.

Investigators working at the site believe a gas leak triggered the detonation, according to pictures and reports from the scene. Officials have not yet formally confirmed the precise origin of the gas, but the suspicion has focused attention on the supply lines serving the densely packed streets of the old town, where narrow lanes and closely spaced apartment blocks leave little separation between properties.

The American tourists were identified as missing only after they failed to arrive for their flight from Athens airport on Friday night, news agency Reuters reported, citing local police. Their absence prompted concern among relatives and authorities, and the discovery of their bodies at the collapsed building helped explain the sudden failure to board the departing flight. The British national was among those killed, though the Foreign Office said it was not disclosing further details about the individual at this stage.

Rescue and recovery operations continued through Saturday, with crews using heavy excavators and thermal imaging cameras to work through the collapsed structure in the hope of finding survivors. By Saturday afternoon, officials confirmed that all six bodies had been recovered. Athens mayor Haris Doukas described the scene as an extraordinary tragedy, saying the city was dealing with "an incredible disaster" as search teams combed through the debris.

Local media reported that additional people were injured by material thrown across nearby streets when the building came down. Some properties in the immediate vicinity were evacuated as a precaution, with residents and guests moved out while the structural stability of adjacent buildings was assessed. Debris was reported spread along the road and into surrounding lanes, complicating access for fire crews and recovery teams working in such a confined area.

The location of the explosion has drawn particular attention because of its proximity to some of Greece's most visited monuments. The street affected sits between the Acropolis and the Temple of Olympian Zeus, two of the principal landmarks that draw millions of visitors to Athens each year. Plaka is one of the oldest residential quarters in the city, characterised by restored neoclassical houses, small squares, tavernas and a high concentration of privately owned holiday lets rented to foreign visitors.

That concentration of visitor accommodation is likely to intensify scrutiny of how rental properties in the historic centre are regulated, maintained and supplied with utilities. Buildings of considerable age are common in the district, and questions are likely to centre on the condition of gas installations and the frequency of safety inspections in properties that are used intensively by short-term guests during the peak tourism season.

The British government's response reflected the involvement of a UK victim. A Foreign Office spokesperson said officials were aware of a suspected explosion in Athens and were in touch with the local authorities. Consular staff would normally assist with identification of the deceased, repatriation arrangements and support for any family travelling to Greece, with the British embassy in Athens expected to liaise directly with Greek counterparts on those matters.

For American families, the scale of the loss — four of the six dead were from the United States — is likely to prompt parallel consular involvement, with the US embassy also expected to work through the same channels. Officials have not released the names of those killed, and identification of all six victims was still in progress as search and investigative work continued.

The investigation is expected to focus on establishing exactly how the gas accumulated and ignited, and whether the maintenance of the supply network or the installation within the building contributed. Greek authorities have previously required utilities serving older central Athens properties to be checked following serious incidents, and the outcome of the inquiry is likely to inform any future programme of inspections across the historic district.

Local residents and business owners in the surrounding streets have described the disruption caused by the collapse, which left a major route through Plaka largely impassable and forced the closure of nearby premises. With the summer tourism season drawing to a close, the incident is set to dominate the national conversation, prompting questions about visitor safety in one of Athens' best-known neighbourhoods.

Emergency crews remained at the site on Saturday afternoon as investigators continued their work, with the mayor vowing that the city would support those affected. The scale of the destruction, in one of the world's most heavily visited city centres, is expected to prompt official scrutiny well beyond the immediate investigation into the cause of the blast.