In the US, at least 23 people died as frigid temperatures gripped parts of the country that are unaccustomed to a deep freeze. Most of the people died in the cold storm or its aftermath. <br />''       <br />''The storm moved to eastern Canada yesterday, but the damage left behind was severe. Temperatures across the middle of the United states had plummeted to lows, not felt in a century with measurements of minus 14 Degrees in Oklahoma City and minus 20 in Fayetteville, Ark.<br />''       <br />''More than four million people across the country, mostly in Texas remained without electricity yesterday afternoon and officials have demanded an investigation into widespread power outages.<br />''<br />