Heavy rains and onrush of upstream hilly waters have worsened the flood situation in Sunamganj and Sylhet districts leaving thousands of villagers marooned in their inundated homes. In Sylhet, the low-lying areas of the district have been flooded due to onrush of water from the upstream, rendering nearly one lakh people marooned, officials said on Monday. The flood situation is also serious in the bordering Kanaighat, Companiganj, Jaintapur and Jakiganj upazilas of the district as the water levels of three rivers are flowing above danger marks. Also read: Flash flood: Low-lying areas in Sunamganj, Sylhet inundated The floodwater started to enter dwelling houses, shops and other establishments as Surma River bust banks flowing above its danger point, inundating the suburbs of Sylhet city, Sobhanighat, Kalighat, Chararpar, Sheikhghat and Masimpur areas.