A powerful tropical storm has killed 20 people and affected 19,000 more in the island of Madagascar, according to an official toll. The countrys disaster management office Monday said the storm which started on Friday, also closed several national highways. In a previous toll late Sunday it said 17 people had died and 15,000 had been affected. Storm Eliakim slammed into the northeastern Masoala peninsula before barrelling south down the coast. By Monday it had moved away from the Indian Ocean island and presents no more danger. Madagascar, one of the worlds poorest countries, is frequently hit by cyclones and tropical storms. In January, cyclone Ava claimed 51 lives and in March last year at least 78 people perished in cyclone Enawo.