A busy start to the weekend for Hunstville/Lake of Bays Fire Department.

Crews were called out Saturday morning around 5 a.m. to a structure fire.

When they arrived crews found three people on top of an apartment building stranded by the fire inside.

The three were safely rescued and fire crews confirmed there was no one else in the building.

Crews were able to contain the fire at the apartment where it had started.

Officials report that the damages to the building are around $100,000.

The Fire Marshal and the Huntsville OPP have joined in to help investigate the cause of the fire.