Bangladesh has begun evacuating millions of people ahead of Cyclone Remal, which is expected to bring winds as fast as 130 kmph when it makes landfall.
The cyclonic storm in the Bay of Bengal is poised to cross the country's coastlines between Sunday evening and midnight, Xinhua news agency reported.
Bangladesh Meteorological Department on Sunday warned of the danger of flooding, landslides and a storm surge.
The great danger signal No. 10 has been sounded for the country's coastal districts and seaports, where fishing boats, trawlers and maritime vessels have been advised to remain in shelter till further notice.
At 9.00 a.m. local time Sunday, the cyclone was centred 295 km south of Bangladesh's Mongla port in the southern Khulna region and 380 km southwest of Chattogram port in southeastern Bangladesh, said the bulletin signed by Kh Hafizur Rahman, a meteorologist at BMD.
Bangladeshi State Minister for Disaster Management and Relief, Md Mohibur Rahman, told Xinhua that at least 8,00,000 people from the ten most vulnerable districts have already been evacuated to shelters.
He said Bangladesh's navy, coast guard, police, voluntary organisations and political parties were supporting the ongoing massive evacuation efforts.
Television footage showed widespread flooding in the low-lying areas of coastal districts.
Due to the peripheral effect of the severe cyclone and steep pressure gradient, the low-lying areas of the coastal districts of Khulna and Chattogram are likely to be inundated by a wind-driven surge of 8-12 feet height above normal astronomical tide, reads the bulletin.
Bangladesh Inland Water Transport Authority has suspended operations of all types of river vessels on all inner routes. Authorities of Chattogram Seaport have ordered to stop unloading of cargo at the outer anchorage and asked all the vessels anchored there to go to the deep sea.
Shah Amanat International Airport in Chattogram has suspended its flight operation for eight hours from Sunday afternoon.
In 2007, Cyclone Sidr hit the country's southwestern coastal belt, leaving more than 4,000 people dead or missing.
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