Dublin Fire Brigade battled two separate vehicle blazes on Saturday night.
The firefighters took to twitter to confirm that they had extinguished the flames in South Dublin, one at a quarry and one on a slip-off road.
Speaking about the fire at the quarry, they said: "Overnight we were called to a car set alight in a quarry in South Dublin, fire was out on arrival but there was significant damage to the vehicle".
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The workers attended the second scene with special breathing apparatus, and they said on twitter: "Vehicle fire being dealt with by firefighters in breathing apparatus in South Dublin tonight".
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Both incidents were dealt with swiftly, but it is not believed either car can be saved.
It comes just days after a car was set alight in the driveway of a house in Dublin, which Gardai have confirmed they are investigating.
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