City officials increased police presence and welcomed nighttime citizen patrols in hopes of preventing a second night of violence in a neighborhood two miles from the White House. Mayor Sharon Pratt Kelly said liquor sales in the predominantly Latino Mt. Pleasant area will be curtailed and more Spanish-speaking officers will be on patrol. Police, firefighters and ambulance workers were pelted with rocks and bottles after a man was arrested for starting a fight at a restaurant. No injuries were reported. Drinking was blamed for the outburst and officials said it was not connected to the Rodney G. King case in Los Angeles.