At 07:41hrs station 2 was alerted to the 2-22box in the 200 block of Riverside Dr. for the reported tree on wires. Medic engine 2 and Brush 2 responded and found primary power lines on fire. Units remaines on location until the power was no longer active. Units secured the scene and went in service. Units were on scene for just over 2 hours. BGE was notified.