Six African migrants drowned and 11 more are presumed dead after smugglers in the Gulf of Aden forced their passengers overboard in deep water off Yemen, the U.N. refugee agency reported Tuesday. A smuggling boat was carrying 40 Somalis and 12 Ethiopians when it approached Yemen's coast on Friday, said Ron Redmond, spokesman for the U.N. High Commissioner for Refugees. But smugglers noticed Yemeni police onshore and panicked, forcing the passengers overboard in deep water, he was quoted as saying by Associated Press. Redmond said 35 passengers were able to make it safely to shore, while authorities have recovered six bodies. Eleven people are missing.