The devastating cyclone, which hit Bangladesh on November 15, also displaced vast amounts of people, with estimates as to the numbers made homeless ranging from 200,000 to millions.
The Bangladeshi Red Crescent Society earlier said that the final death toll could reach 10,000, as official statistics had failed to take into account victims on coastal islands and in isolated areas.
Rescue and relief missions have been sent to about 90% of the affected areas, while the rest of the territory ravaged by the cyclone is expected to be reached in the next two days.
Bangladesh has sought foreign aid in tackling the aftermath of the most destructive cyclone to hit the country since 1991, when at least 139,000 people were killed along its coastline. In 1970, a cyclone claimed around a half a million lives in the country.
In his statement, United Nations Secretary-General Ban Ki-moon pledged the full support of the organization.
"The UN is ready and willing to help them in any way possible," he said. "We have made clear that several million dollars are available from the Central Emergency Response Fund."
The European Union, the U.S., the U.K., Germany, France, Japan, Italy, the Philippines, and the Netherlands have also promised to aid the stricken south Asian country.
