Warsaw, Jumada II 16, 1439, Mar 4, 2018, SPA -- An apartment block collapsed Sunday in Poland's western city of Poznan, killing four people and injuring 24 others, officials said as teams of firefighters and rescuers with dogs combed the rubble in search of more victims. The building contained 18 apartments and 40 residents, according to firefighters spokesman Slawomir Brandt, who gave the death toll. Regional governor Zbigniew Hoffman said it was too early to determine the cause of the collapse but added that a gas explosion was one possible explanation, AP reported. Regional construction inspector, Pawel Lukaszewski, said the remaining part of the building was closed down and its gas was cut off. --SPA 21:29 LOCAL TIME 18:29 GMT www.spa.gov.sa/w632703