Authorities believe that a bomb may have caused the explosion and fire on a jetliner that forced an emergency landing in Somalia on Tuesday, U.S. sources say. The Daalo Airlines flight landed at Aden Adde Airport in Mogadishu with a hole in the fuselage that appeared shortly after the jetliner took off. Local media reported two passengers were hurt, while Nano News reported that a loud bang was heard followed by flames. There were 74 people on board the plane, which was heading to Djibouti in the Horn of Africa. Investigators said early Wednesday they saw no signs of an explosive device.