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A worker cuts off branches of a tree blown down by high winds that blocked part of Woodley Road NW in Washington D.C., the United States, on March 2, 2018. Strong winds, heavy rain, surging waves and sporadic snow are wreaking havoc across the U.S. East Coast on Friday, already leaving thousands of flights cancelled, power knocked out in part of Washington D.C. and over 22 million residents under a coastal flood warning. (Xinhua/Li Muzi)