A powerful storm that battered the northeastern United States over the weekend has left more than one-and-a-half million people without power. <br /> The "nor'easter" has also claimed at least nine lives, as it snapped trees and cut down power lines.<br />Transportation was also disrupted, with hundreds of flights going in and out of major airports in New York and Boston being cancelled.<br />Although the strong winds, rain and snow have moved offshore, weather authorities are still warning of flooding and high tides in coastal areas from Maine to New York's Long Island. <br />
