BERLIN (AP) — Norwegian authorities said a polar bear on Saturday attacked and injured a polar bear guard who was leading tourists off a cruise ship on an Arctic archipelago. The polar bear was shot dead by another employee, the cruise company said. The Joint Rescue Coordination for Northern Norway tweeted that the attack occurred when the tourists from the MS Bremen cruise ship landed on the most northern island of the Svalbard archipelago, a region between mainland Norway and the North Pole that is known for its remote terrain, glaciers, reindeer and polar bears.