Authorities are attempting to identify who dumped suspected asbestos at a residential address on Friday evening in north-western Sydney.

Fire and Rescue services were called to an Oatlands home after a resident reported rubbish bags had been dumped by a truck onto their driveway.

CCTV footage of the incident shows a dump truck make several attempts to reverse into the driveway before dumping the entire contents of the truck's load.

Moments later, two children can be seen rushing out to the driveway before returning to the home.

Firefighters suspect the bags contained asbestos material.

Wearing protective suits, they inspected the bags and wet them down before decontaminating the area.

The suspected asbestos has been covered and contained. ( ABC News: Brooke Wylie )

NSW Fire and Rescue Superintendent Adam Dewberry said that although the material had not yet been confirmed as asbestos, authorities were treating it as "a worst-case scenario".

"Asbestos is a very dangerous product, there is a lot of it in the community and if it's not used appropriately it can be very dangerous to the community [and] that's why Fire and Rescue does treat these matters very seriously," he said.

"Even though we are not too sure if this is asbestos we have treated it as asbestos to contain it and render it safe so the occupants can safely remove it at a later date."

One resident of the house in question said he was "not worried at all, as things happen".

A neighbour, Joel Jammal, said he heard trucks go past the house about 9:00pm and heard some noise later on, but thought it was the children next door.

"We saw this big pile in front of the neighbours house, I was like, I don't remember seeing that yesterday."

He said he was not too concerned about the suspected asbestos, now that it has been contained by authorities.

The ABC understands the residents involved have been uncooperative with police.

A large truck arrived at the property about midday to remove the rubbish.