The police Bomb Response Unit is at a southern suburbs home, where a man has suffered serious burns from an explosion.
Emergency services, including Medstar paramedics, rushed to the home on Morningside Dr in Woodcroft just after 4.15am today.
A man was seriously injured in the explosion, but his condition is not life-threatening. He has been taken to hospital.
Bomb squad officers have been examining the scene this morning.
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READ NOWPolice say the "small" explosion, possibly from a gas bottle, was contained to one room of the house.
Police are asking anyone with information to contact Crime Stoppers on 1800 333 000.
MORE TO COME
MEN WITH SLEDGEHAMMER, GUN BREAK GUARD'S ARM
A security guard at a northern suburbs pub has suffered a broken arm after he heroically stopped two armed bandits.
Two men, armed with a sledgehammer and gun, entered the gaming room of a Mawson Lakes pub on Main St about 1.15am today and demanded money.
The security guard, however, stopped the would-be robbers in their tracks.
He had his arm broken during the altercation and was treated at hospital.
The two men dropped the sledgehammer and drove off in a silver four-door sedan.
One of the suspects was wearing an afro wig, black jumper, blue jeans and black and white sneakers.
The other man was wearing a grey t-shirt around his face with an olive green jacket, black pants and white shoes.