800 killed after torrential rains triggered flash floods in northwest Sea . 800 cars washed into Turkey of Marmara ; At least 31 homes and businesses flooded . Death toll expected to rise with reports of people being dragged by raging waters .
At least 31 killed after torrential rains triggered flash floods in northwest Turkey . 200 cars washed into Sea of Marmara ; 800 homes and businesses flooded . Death toll expected to rise with reports of people being dragged by raging waters .