Detective Inspector Lloyd Schmid said three men and two women were in the house at the time.
Police are asking witnesses to come forward.
All were asleep when three offenders burst into house and shot an unknown number of rounds.
One woman on Marion Ave where the shooting occurred said the residence where the shooting occurred this morning around 7am was a "very nice family" of teenage boys and older parents. The woman said they were of Islander descent.
Emma Anmatangi, 33, said she heard nothing all night. The Marion Dt resident said she had never seen gang affiliates on the street, and aside from a few people loitering out on the street near where the shooting occurred it was generally quiet.
Another neighbor who works security at night drove past the address where the shooting occurred at 7am this morning and said all was peaceful at that time.
In a separate incident, a man was killed and another injured in a shooting overnight in Otara.
About 11.45pm shots were fired on Bairds Rd, in Otara. When police got to the scene, they found a man had been critically injured.
They attempted to save the man but he died at the scene.
A second person was moderately injured and taken to Middlemore Hospital.
Police have launched a murder investigation.
Schmid wouldn't say if the Mt Roskill incident was connected to the Otara incident - but were "keeping an open mind" and working with Otara staff.
Police are asking anyone with information about the incident to come forward and call them on 105.
Information can also be passed anonymously via Crimestoppers on 0800 555 111.
