Dozens of Africans are feared to have been drowned off south Yemen, amid conflicting reports over their numbers and the cause of the accident.The Yemen’s interior ministry in a statement said that eighty Africans, mostly Ethiopian, drowned after their two boats capsized. The accident was caused by high winds and a tsunami which capsized the two boats, the statement said, quoting the coast guard in the southern port city of Aden. One boat with 46 migrants aboard, most of them Ethiopians, capsized in a coastal region of Taez province. Another boat carrying between 35 to 40 people, all of them Ethiopians and among them women and children went down off the coast of another southern province, Lahij, the ministry said. Their fate is not yet known, it said, adding that a search was under way.