DRAMMEN, Norway -- A major fire in southern Norway destroyed more than 100 homes Friday and forced hundreds of people to evacuate the area, according to police and the country's public broadcaster.

The blaze started in a townhouse in the city of Drammen around 3:30 p.m. Friday, police said. It then spread through the area and into nearby forests. Firefighters continued their efforts Saturday morning to bring the blaze under control.

NRK, Norway's public broadcaster, said hundreds of people went to an evacuation center.

No residents have been reported missing, police said. It was not immediately clear what caused the fire.

Drammen is roughly 34 kilometers (21 miles) southwest of Oslo.