Zoo Tiger Escapes, Kills Visitor

A tiger escaped from its cage at the San Francisco zoo today and killed a visitor, the San Francisco Chronicle reports. Two other visitors were attacked during the rampage, but they survived. The extent of their injuries was not immediately known. Police shot the tiger dead as it attacked patrons of a zoo cafe. Officials aren't sure how the tiger escaped. 

Officials had first thought as many as four tigers were on the loose, but they later found three of them never left their pen in the center of the zoo. The attack comes a year after one of the zoo's Siberian tigers, Tatiana, mauled a keeper during a public feeding. (More tigers stories.)