Yaounde, Nov 29 (Reporter) At least 20 people were killed on Thursday after a boat capsized in Cameroon's Far North region, according to witnesses and security sources. The boat capsized as it was transporting passengers from Darak island in the Logone-et-Chari division of region, witnesses told Xinhua Thursday evening. Local media reported that more casualties are expected, as rescuers search for more victims. Security sources said that a formal investigation has been opened to determine the cause of the accident. Boat accidents are common in the region often caused by overloading, faulty operations and severe weather...////...