Police have praised the efforts of a senior officer who was instrumental in rescuing a woman from burning unit in Telopea over night.
Investigators believe the fire was deliberately lit.
The unit fire at Moffatts Drive was spotted by Rosehill police who were on patrol in the area about 8pm, Wednesday.
The officers and neighbours of the property managed to pull a female resident through a front window of the unit before it was engulfed by flames.
Detective Inspector George Radmore said the actions of sergeant Andrew MacKay saved the woman from ‘‘serious injury or death’’.
‘‘This officer in particular has saved this woman from very serious injury or death by his quick action and calm head during the situation,’’ he said.
‘‘His actions are viewed by the command as highly commendable and a good example of police being at the scene and protecting the community through their actions.’’
The woman was taken to Westmead Hospital for treatment to non-life threatening injuries, police said.
A number of other adjoining units were evacuated but the fire was contained to the one home and no one else was injured.
Fire and Rescue NSW officers extinguished the flames but the home was described as ‘‘extensively damaged’’ and ‘‘uninhabitable’’.
Investigators are still trying to determine the cause of the fire but Detective Inspector Radmore said the evidence suggested it had been deliberately lit.
''Certainly the fire is suspicious and it's fair to say it was deliberately lit,'' he said.
Anyone with information about the fire can contact Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page: www1.police.nsw.gov.au/.