Story highlights More than 200 firefighters are trying to bring the blaze under control

Fire believed to have started by lightning on January 6

(CNN) Australian firefighters are battling a huge blaze that's engulfed the small town of Yarloop, and is threatening others south of Perth in Western Australia.

Ninety-five buildings have been destroyed so far, and emergencies have been declared in the nearby towns of Harvey and Waroona, according to the Western Australia Fire and Emergency Services.

More than 200 firefighters and support stuff are currently fighting the blaze, using about 50 fire trucks and 24 heavy construction vehicles, such as bulldozers or excavators.

Photos: Firefighters battle bushfire in Western Australia Images from Western Australia emergency services show towering flames dwarfing vehicles as firefighters race to control the blaze. Hide Caption 1 of 8 Photos: Firefighters battle bushfire in Western Australia At least 95 buildings were destroyed in the town of Yarloop, south of the state capital of Perth. Emergencies were declared in the nearby towns of Waroona and Harvey. Hide Caption 2 of 8 Photos: Firefighters battle bushfire in Western Australia The first calls came early in the morning of January 6. The blaze is believed to have been sparked by lightning, according to emergency services officials. Hide Caption 3 of 8 Photos: Firefighters battle bushfire in Western Australia Hot, dry conditions created fuel for the fire which was fanned by strong winds. Hide Caption 4 of 8 Photos: Firefighters battle bushfire in Western Australia This image was posted to the Facebook page of the Margaret River Fire & Rescue Crew of firefighters in Waroona. The post said: "The guys on the ground say that 'it's absolute mayhem'." Hide Caption 5 of 8 Photos: Firefighters battle bushfire in Western Australia Firefighters from the Bunbury Volunteer Bushfire Brigade fight the flames. Hide Caption 6 of 8 Photos: Firefighters battle bushfire in Western Australia Flames spread quickly due to strong winds and dry conditions. Hide Caption 7 of 8 Photos: Firefighters battle bushfire in Western Australia Firefighters have been working in shifts to give each other time to rest as the flames move relentlessly forward. Hide Caption 8 of 8

There have been no mandatory evacuations but people are being urged to leave or actively defend their properties. Four people have been injured so far and there have been no fatalities, the emergency services said.

The fire was first reported after daylight on Thursday, January 6. It's believed to have been ignited by a lightning strike hitting bushland.

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