LONDON, Ont. - A fire at a complex in Owen Sound left one unit with heavy fire damage and others with smoke and water damage.

The exact number of units damaged or a total damage estimate has not been released in the fire that took place Sunday morning.

Police say one male occupant was taken to hospital as a precaution. Another two elderly patients were taken to hospital as a precaution but were quickly released.

The cause of the fire has been determined to be accidental.