The federal Bureau of Alcohol, Tobacco, Firearms and Explosives said Wednesday that it is offering a $5,000 reward for information leading to the arrest of those responsible for stealing 559 pounds of explosives last month near Red Lodge. The theft happened sometime in April when thieves broke into a U.S. Forest Service storage bunker about two miles south of Red Lodge, said Brad Beyersdorf, an ATF spokesman. Items stolen included emulsion-type explosives, explosive cast boosters and detonating cord.