Hundreds of people are missing, while more than 1.5 million people have been affected across the three Southern African countries.
Most of the deaths in Mozambique happened in the central port city of Beira, 90 percent of which was destroyed, according to the International Federation of Red Cross and Red Crescent Societies (IFRC).
Mozambique President Filipe Nyusi feared the death toll could rise to 1,000 in the country.
In Zimbabwe, the cyclone tore through the eastern and southern parts, creating a humanitarian crisis. The Chimanimani district has been cut off from the rest of the country by torrential rains and winds that swept away roads and bridges knocking out power and communication lines.