NEW YORK (AP) — New York City police say about 700 protesters have been arrested after they swarmed the Brooklyn Bridge and shut down a lane of traffic for several hours.Police say some demonstrators spilled onto the roadway Saturday night after being told to stay on the pedestrian pathway. They face charges of disorderly conduct and resisting arrest. The lane has since reopened.Occupy Wall Street demonstrators are railing against corporate greed, global warming and social inequality, among other grievances.The group has been camped near the Financial District for two weeks and clashed with police on earlier occasions.Earlier Saturday, two other marches went over the bridge without problems. One was from Brooklyn to Manhattan by a group opposed to genetically modified food. Another in the opposite direction marched against poverty.