<p><br /> A tornado has killed at least ten people and injured dozens more in Mississippi.<br /> </p><p><br /> A whirling cloud nearly a mile wide ripped through the centre of the US state, destroying scores of homes and trapping people inside, damaging businesses, blocking highways and knocking out power to thousands.<br /> </p><p><br /> Five people died in Choctaw County, four in Yazoo County and one in Holmes County, said a spokesman for the Mississippi Emergency Management Agency.<br /> </p><p><br /> Governor Haley Barbour declared a state of emergency after the first major US tornado of the year, saying: "It has done huge damage around Yazoo City.<br /> </p><p><br /> "We have fatalities, a number of people that we're still trying to rescue who are trapped in buildings. But it is a major, significant tornado ... and it did some huge damage and perhaps some fatalities north of here."<br /> </p><p><br /> The storm system has moved to Tennessee, Alabama and Kentucky, said Greg Carbin, spokesman for the National Oceanic and Atmospheric Administration.<br /> </p>
