A police investigation has begun after a human torso was discovered in the bushes on Sydney’s north shore.

Officers arrived at the scene, in bushland along the Lane Cove River, about 2.30pm on Wednesday after reports human remains had been found.

There, police said they discovered a sofa containing a human torso.

“Police established a crime scene with forensic specialist seizing the unidentified human remains for a post-mortem examination,” a spokesman said.

The remains, which are believed to belong to an adult male, are yet to be formally identified.

NSW Police will provide an update later on Thursday and has requested anyone with information contact Crime Stoppers.

-AAP