Fireworks are likely to blame for a brush fire that forced the evacuation of five homes in West Kelowna on Saturday night, officials say.

"There were several eyewitness reports of fireworks being used in or near [Kalamoir] Park," said Assistant Chief Darren Lee of West Kelowna Fire Rescue.

"These fireworks are the likely cause, however investigators cannot determine that these were the actual ignition source," Lee added in a statement.

Flames came within metres of the homes on Weatherhill Road, but crews were able to get it under control after it had grown to about two hectares.

A helicopter and air tankers were brought in to attack the aggressive fire, which is still not completely contained.

West Kelowna Fire Rescue, BC Wildfire Management and Regional District Parks were back on site on Sunday morning dealing with hot spots and building a fire guard around the perimeter.

Crews hope to have the fire fully contained before temperatures get into the 30’s, Lee said.

Anyone with information is asked to contact the West Kelowna RCMP at 250-768-2880.