Rain-swollen Gumti river burst its banks in Devidwar upazila in southeastern Comilla district on Wednesday evening and inundated 20 villages marooning several thousand people . About 100-foot portion of the Gumti dam was damaged by the swelling river water but no deaths or injuries were reported, an official in Comilla town, 150 km off the capital, said. Army has been called to assist people in this emegency situation.