A tropical cyclone has killed at least 20 people in Madagascar. Cyclone Gezani made landfall on Tuesday and has caused widespread destruction. Winds of around 120mph ripped through the east coast of the island, tearing metal sheets off rooftops and uprooting large trees. Collapsing buildings caused many of the deaths recorded so far, according to the National Office for Risk and Disaster Management. Gezani comes just 10 days after cyclone Fytia also hit the island - killing 14 people and leaving

WATCH: our new 'Understanding tropical cyclone categories' video. A tropical cyclone’s effects vary depending on its intensity, so it’s important to understand the hazards involved and the potential damage a tropical cyclone can cause. More info: http://www.bom.gov.au/cyclone/about/ | Bureau of Meteorology