Police are investigating whether a car fire in Calwell was deliberately lit.

They said they went to Brawn Place about 12.18am after receiving reports of a burning black 2007 Ford Ranger.

"ACT Fire and Rescue extinguished the vehicle fire. They were unable to establish a point of ignition for the fire, and the cause of the fire is now under investigation by police," they said.

"AFP Forensics attended and examined the scene today."

Police ask anyone who may have seen the fire or any suspicious activity in the area to contact Crime Stoppers on 1800 333 000 or at act.crimestoppers.com.au.

canberratimes.com.au