Police are investigating three arson attacks in Emerald this morning.
Around 2am police attended Borilla Street following reports of a car on fire. They found a van damaged by a fire that had been extinguished by a passer-by.
Whilst investigating that incident police were then called to a nearby building, also on Borilla Street, to find it was also on fire.
The office building was extensively damaged by the fire.
No injuries were reported from either incident.
A crime scene has been established and investigations will continue into the cause of the fires in the morning.
Anyone with information which could assist police with their investigations should contact Crime Stoppers anonymously via 1800 333 000 or crimestoppers.com.au 24hrs a day.
Crime Stoppers is a charitable community volunteer organisation working in partnership with the Queensland Police Service.