Bikies set three cars alight before shooting at a Kambah home overnight in what ACT Policing called part of an ongoing feud.
Detective Superintendent Ben Cartwright said an unknown number of people poured petrol onto three cars belonging to the residents, set them alight then shot at the home.
While the shooters only aimed for the door, police said a child was inside the home at the time.
"There's obviously a feud going on between outlaw motorcycle gang members," Mr Cartwright said.
"I'm not going to speculate as to this particular incident and what the feud's about because I simply don't know."
About 2am on Friday, police arrived at the home on Chirnside Place, whose occupants are known to police, to find three cars on fire.
ACT Fire and Rescue crews put out the blaze and police found damage to the home consistent with a firearm being discharged.
"No one has been injured in this incident which is very, very fortunate," Mr Cartwright said.
According to various neighbours living in the area, who won't be named for safety reasons, it was the third time over a twelve month period they'd heard shots being fired at the house.
However, they said the burning of the three cars at the property was an escalation of the previous shootings.
Police had previously been called out to same home in October after shots were fired about 11:30pm, Sunday, October 23.
In October police said the victim had chosen not to cooperate with them.
Otherwise, various neighbours said, the occupants of the house were quiet and kept to themselves.
Detectives and AFP forensics teams attended the scene with ACT Policing's bikie gang taskforce, Taskforce Nemesis, taking charge of the investigation.
Mr Cartwright said the taskforce was dedicated to working on outlaw motorcycle criminal gang activity.
On Friday afternoon, police had taped off the house and were taking photos of the crime scene.
A ute on the kerbside had been destroyed, whilst a sedan and a hatchback closer to the house had been partially damaged.
Police urged anyone with information about the incident to contact Crime Stoppers on 1800 333 000.
"Members of the public can come forward anonymously," Mr Cartwright said.