dera ismail khan - Flash floods caused by heavy rains submerged several villages in Dera Ismail Khan as a bridge was damaged by flood waters in the district. Heavy rainfall continued in Dera Ismail Khan, submerging the adjoining villages on Tuesday while land link of Paharpur village was disrupted with DI Khan.  According to reports several houses and a bridge has also been damaged in flash floods. It was revealed that heavy rainfall on the mountains caused the flooding and widespread damage.