At least 31 people were killed across the region and dozens were stranded in cars or on rooftops and an unknown number remain missing.[1][5] Three of the deaths occurred in western suburbs of Istanbul on 8 September, 21 people lost their lives in Istanbul on 9 September and seven more in neighbouring Tekirdağ Province, where two further people are missing.[2][6] Muammer Guler, governor of Istanbul, said 20 people were injured by the floods.[7] Officials and experts have blamed the high death toll on unplanned urbanisation in Istanbul, which has seen buildings constructed in river beds, and an inadequate infrastructure system.[2][7]