Colorado firefighters are investigating a wildfire near Frisco they believe was caused by a person Saturday evening. Summit Fire and EMS said the wildfire was reported just before 5 p.m. Red, White and Blue Fire Protection District crews also assisted with containment and used drones equipped with infrared cameras to monitor the fire. The drones provided real-time data to crews at the scene, allowing them to watch for heat pockets outside of containment lines. Watch more ...