At least 16 people have been killed in a monster storm sweeping across much of the U.S. Ten people were killed in Missouri after a tornado outbreak. That is according to the Missouri State Highway patrol. The agency said multiple people were also injured. Officials in Arkansas said on Saturday morning that three people died in Independence County and 29 others were injured across eight counties as storms passed through the state overnight. Authorities also say that three people were killed in car crashes during a dust storm in Amarillo in the Texas Panhandle.