Bones found in grim search for William Tyrell

Forensic officers have confirmed the set of bones found in the search for missing toddler William Tyrell belong to an animal.

"Bones discovered at the site have been examined by a pathologist, who has concluded they are not human," read a police statement.

The three-year-old was snatched almost six months ago on the NSW mid-north coast.

Up to 30 police are combing dense bushland on the NSW mid-north coast as part of the investigation into missing William, but police say the latest tip-off is "very general".

Officers from the Homicide Squad, Riot Squad, Dog Unit and Water Police, arrived at bushland south of Port Macquarie, just after 9am on Monday.


NSW Police uploaded this photo to their Twitter account with the caption: 'Officers continue search in bushland, as the investigation into the disappearance of #WilliamTyrrell continues'. Source: Twitter

The latest search comes after a tip-off and information gathered by homicide detectives.

Police said earlier that the new information in the case isn't related to the location of a body.

"There is always that possibility but we are searching for evidence at this point," Homicide Squad commander Superintendent Mick Willing told reporters in Sydney.

"All I want to say is that the information is very general, it is not that specific."

The search, which covers several kilometres, is expected to run over a few days.

Supt Willing said it wouldn't be the last search in the investigation.

Police believe William was snatched from a quiet street in Kendall, where he had been visiting his grandmother, on September 12 last year.

He disappeared when his mother went inside to make a cup of tea.

A supplied images of William, who has been missing for almost six months.

In January, police raided the home of washing machine repairman William "Bill" Spedding, who had been due to fix William's grandmother's washing machine around the time the he vanished.

However, he did not carry out the repairs that day.

Mr Spedding has denied any involvement in William's disappearance.

Police say at the "very highest" Mr Spedding is a person of interest but not the only person of interest.

Police are urging anyone with information in relation to this incident to call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page. Information you provide will be treated in the strictest of confidence. NSW Police remind people they should not report crime information via the Facebook and Twitter pages.