<span style="color: #222222;">At least nine people were killed, including two children, in a plane crash in the US state of South Dakota. Three others were injured in the accident yesterday while a winter storm warning was in place, US media reported.<br />''  <br />'' The Federal Aviation Administration said a single-engine plane crashed shortly after take-off. It was carrying as many as 12 people. Among the dead was the plane's pilot. </span><br />