Warring members of Canberra's outlaw motorcycle gangs are believed to be behind a violent attack on a home in Canberra's south overnight.

ACT Police said the home, beside an early childhood centre on Ellerston Avenue in Isabella Plains, was shot at before a car on the front lawn was set alight.

The car fire was extinguished by emergency services crews about 11:30pm.

A second vehicle nearby was also damaged by fire.

A window at the front of the house appears to have been hit with a spray of pellets from a shotgun.

Several neighbours said they were woken by a loud commotion in the street before hearing the gunshot.

The home's front window and wall were hit by bullet fragments. ( ABC News )

Police Superintendent Steve Turnbull said a taskforce dedicated to tackling the territory's outlaw motorcycle gangs was investigating the incident.

"Taskforce Nemesis will be assisting criminal investigation detectives during the investigation," he said.

"Investigating officers believe that this is a targeted incident relating to outlaw motorcycle gang activity."

The incident comes just days after the ACT's Chief Police Officer warned Canberra's lack of anti-gang laws were making it a haven for rival bikie groups.

There have been a number of similar incidents across Canberra in recent months including at Fyshwick, Tuggeranong and Reid.