Bear escapes from zoo enclosure for second time

The four-year-old bear, who weighs about 300lbs, was tranquilised and returned to the enclosure.

St Louis Zoo’s Andean bear named Ben (JoEllen Toler/St Louis Zoo via AP)

Officials at a zoo in the US say they are working to find a way to keep an Andean bear inside his enclosure after he escaped for the second time this month.

The bear, named Ben, was outside for less than an hour and was found only about 100ft away from his habitat, St Louis Zoo officials said in a statement.