The efforts to contain the fire were caught on video, which was posted to social media.
In the video, firemen are using hoses to dowse the flames that had engulfed the gritter, with billowing black smoke also coming off the burning vehicle.
The gritter was one of 120 Highland Council use and has been using often following periods of snow and ice across the north.
No one was injured in the incident and it is unknown what caused the fire.
A spokeswoman from Highland Council confirmed an investigation had been launched into the incident.
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WATCH: Investigation launched after gritter catches fire in Inverness
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