Residents of a Guelph apartment building were awoken and told to leave early Wednesday morning after fire broke out in a top-floor unit.

Fire alarms began sounding at 102 Silvercreek Parkway around 2 a.m.

Within minutes, firefighters from four stations were on the scene.

Although smoke and flames were seen in the ninth-floor apartment where the fire began, crews were able to stop it from spreading beyond that unit.

Firefighters believe the fire is accidental in nature, sparked when a baseboard heater ignited combustible materials.

Damage is estimated at up to $100,000.

No injuries were reported.