It was a tragic weekend for aviation with 3 fatal crashes

It was a tumultuous weekend in aviation as three planes crashed, killing all aboard, in separate incidents in Ethiopia, Colombia and the United States. On Sunday, an Ethiopian Airlines plane crashed shortly after takeoff, killing all 157 people on board. Investigators have started their search into what caused the deadly incident. On Saturday, a plane went down in Colombia, killing at least 12 people. On Friday, a small plane plunged into a Florida lake, leaving five dead.In the United States, there were two separate, non-fatal incidents Saturday, including severe turbulence that injured dozens of people as their plane approached New York's JFK airport, and an emergency landing in Newark, New Jersey.