Detectives are investigating a suspicious fire at an Emerald unit duplex last night.
Around 7:20pm, officers were called to the Glovar Street premises with reports of an explosion and smoke issuing from the structure.
On arrival, crews located the low set duplex building well-engulfed with damage to a second structure.
Queensland Fire and Emergency Service officers extinguished the blaze which caused substantial damage to the building.
No one was injured during the fire.
Preliminary information indicates that the fire may have been deliberately lit using an accelerant.
A man was seen running from the property shortly after the fire and is described as Caucasian, 187cm tall, proportionate build, bald head and wearing a faded maroon coloured t-shirt.
The man drove off in a dark coloured Subaru Forester bearing NSW registration CK79GY and was last seen travelling east on the Capricorn Highway.
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