MISSOULA, Mont. -

A Missoula teen pleaded not guilty to felony robbery for an incident at Southgate Mall.

18-year-old Robert Levi Leavens appeared via video from the jail in Missoula County District Court Wednesday.

Prosecutors say Leavens tried to steal a sweatshirt from a store in the mall and when an employee approached him he pulled out a knife.

Leavens is still in jail on $15,000 bail.