At least 200 people have been arrested during clashes between police and Occupy Wall Street demonstrators in New York City, part of a day of mass gatherings in response to efforts to break up Occupy Wall Street camps nationwide. Thousands of protesters took to the streets around the U.S., including Los Angeles, Dallas, Portland, Ore., to mark two months since the movement's birth. Dozens of arrests were reported, including at least 31 in Los Angeles. One of the largest demonstrations was in New York, where at least 1,000 demonstrators tried to clog streets around the stock exchange. Mayor Michael R. Bloomberg and Police Commissioner Raymond W. Kelly said five of the protesters arrested were charged with felony assault and that seven police officers and 10 protesters were injured.