Greek rescuers were searching for people trapped after a four-story apartment block collapsed on Tuesday in the Petralona area of Athens, the fire brigade said.⁣ ⁣ Four people who were earlier reported trapped had been located and were safe, but the operation continued, the service said.⁣ ⁣ Crew with rescue dogs searched the rubble while other forces were on standby, the service said in a statement.⁣ ⁣ It was not clear what caused the collapse of the building which had seven apartments. Construction work was underway in an adjacent building, the fire brigade said.⁣ ⁣ #athens #collapse #rescue