Queensland police are appealing for people to come forward after a Logan home was targeted in an arson attack for the second time in a month.
Emergency services were called just before midnight on Sunday after two objects were thrown through the windows of a Douglas St property, starting two small fires with a third started in an external carport.
Detective Inspector Mark White told AAP police have little information about the incident, including whether it was a targeted or random attack.
Inspector White said it was the fourth time the home had been damaged in recent weeks.
There was another fire two weeks ago and two separate graffiti attacks.
The most recent vandalism occurred in the days leading up to Sunday's fire, where the words "FU YOR DEAD" were spray painted on the front of the property.
Police have spoken to the 33-year-old woman and six children living at the home, but would not say if there any prior incidents may have led to the attack.
Inspector White urged anyone with information to come forward and said there was "no doubt" people were withholding details.
"Someone out there will know something," he said.
If you have information for police, contact Policelink on 131 444 or provide information using the online form 24hrs per day.
You can report information about crime anonymously to Crime Stoppers by calling 1800 333 000 or via crimestoppersqld.com.au.