A blast Tuesday wounded one person in an army district of Karachi. Police initially reported that a bomb planted under a tree near a hospital in the army cantonment had exploded, less than a kilometer (half mile) from the residence of the U.S. consul general, but later said the blast was an accident caused by a concentration of gas in a pipe. Tahir Naveed, a senior police officer, said one passer-by was injured, according to a report of the Associated Press.
