Greek authorities probe cause of Athens blast that killed six in Plaka district

An explosion collapsed an apartment block in Athens' historic Plaka district, killing six people including four American tourists.

• Six bodies — three women and three men — were recovered Saturday, more than 24 hours after the blast struck at 7.30am.
• The dead include four American tourists in a short-term rental and a British man and his Greek wife who lived upstairs.
• Vice-mayor Paris Charlaftis said focus is now on the explosion's cause, with a suspected gas leak among theories.
• Rescuers deployed thermal cameras and geophones and brought in search dogs to comb the rubble overnight.
• Two women were injured in an adjacent building, and neighboring structures were evacuated and damaged by the blast.
• Athens Mayor Haris Doukas called the blast an unimaginable catastrophe as rescuers continued searching.
• Residents had reportedly warned authorities about gas leak risks in the area a year before the blast.