ALTOONA, Iowa — The roof of a house near Adventureland went up in flames Friday afternoon.

The Altoona Police Department and Altoona Fire Department responded to a report of a house on fire around 1 p.m. in the 500 block of 31st Ave. SW. When fire crews arrived they discovered heavy fire and smoke coming from the north side of the home.

No injuries occurred during the fire, the police said. The estimated cost of fire and smoke damage to the home is unknown at this time.

Investigators said the fire was caused by an exterior energized heat source coming into contact with combustible materials.