William Tyrell: Forensic experts says remains belong to an animal | Photos, videos

The search will end at 5pm on Wednesday, however police stressed this is likely to be just one search of many to come.

Chief Inspector Colin Green said the group had covered about 500 metres stretching across both sides of Long Point Trail on Monday.

“We’re searching bushland for anything and everything,” he said.“This is an active investigation - the focus is on finding anything related to William disappearance.”

MONDAY 6.15pm:  Police believe remains found in bushland where they are searching for William Tyrell belong to an animal.

Chief inspector Colin Green said forensic experts are still working at the site, and are about halfway through examining the remains.

Each bone has to be photographed individually, he said, with further examination needed. 

4.30pm: Chief Inspector Gary Jubelin has confirmed remains have been found in Queens Lake State Conservation Area.

However, he could not say if they were human or animal.

The investigator said it was "not unusual" during such a concentrated search of bush for remains to be discovered.  

He said forensic specialists had been called in to assess the find, with their results expected to take some time.

He added that the search will continue throughout the afternoon and resume on Tuesday morning. 

Anyone with information about William’s disappearance is urged to come forward via Crime Stoppers. 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.

4pm: The search for William Tyrrell will continue for the next few days in the Queens Lake State Conservation Area.

Police combed the western side of Long Point Trail on Monday morning, before turning their attention to the fire trail’s eastern edge in the afternoon.

Officers called out as they moved past the command post at 2.45pm, with a Homicide Squad investigator rushing over to look. Soon after, however, the search through dense scrub moved on.

Chief Inspector Colin Green said the search would move further into the bush, heading north from Houston Mitchell Drive, on Tuesday from 8am.

Strike Force Rosann coordinator, Detective Inspector Gary Jubelin, arrived on Monday and is expected to continue running the search. 

1.30pm: Police have established a mobile command at the intersection of Houston Mitchell Drive and Long Point trail, about 1.5 kilometres east of the Pacific Highway.

Noon: Homicide commander Superintendent Michael Willing said at a press conference in Parramatta  on Monday that the tip-off had nothing to do with the location of a body.

"This will not be the last search in regards to this investigation," Superintendent Willing said.

"There is always that possibility [of finding a body] but we are searching for evidence at this point."

He said the search would focus on an area a few kilometres wide and would last for a number of days.

Officers on Monday would conduct a line search by hand and consider the possibility of digging if they found anything significant, he said.

"A search by hand and see what comes from that," Superintendent Willing said.

The head of the investigation, Detective Inspector Gary Jubelin, continues to be in close contact with William's family as the search continues, Superintendent Willing said.

"They are very distraught; we are in daily contact with them," he said.

Monday 6am: Police will begin new searches in bushland, as the investigation into the disappearance of William Tyrrell continues.

A tip-off, police said, had led them to an area of dense bushland at Bonny Hills, about 20 kilometres from the small town of Kendall where William disappeared from the back yard of his grandmother's home in September last year.

Strike Force Rosann has been established to investigate the toddler’s disappearance, with the investigation now being led by the State Crime Command’s Homicide Squad.

Monday's search will be conducted in the vicinity of Houston Mitchell Drive and Long Point Road at Bonny Hills, however police are not prepared to divulge the exact location.

Officers are believed to be focusing on an area of dense bushland in the Queens Lake State Forest.

The search is being co-ordinated by the Homicide Squad with assistance from the Public Order Riot Squad, Operational Support Group, Dog Unit and Water Police.

These activities are the result of information received from the public and inquiries made by the Strike Force Detectives.

It is the second time that police have descended on the town of Bonny Hills this year in their investigation into the disappearance of William.

In January, police searched the Bonny Hills home of washing machine repairman William Spedding, 63, using an excavator and draining a septic tank at the semi-rural property in Wandoo Place. They also searched Mr Spedding's pawnbroker business in the nearby town of Laurieton.

Mr Spedding has denied any involvement in William's disappearance, and police have said Mr Spedding is not a suspect in William's disappearance.

William disappeared about 10.30am on September 12 while playing in the garden of his grandmother’s house with his four-year-old sister. He was wearing a Spider-Man suit.

A 10-kilometre search of the area surrounding the house in the days after he disappeared failed to find any trace of William.

The search lasted weeks and involved the NSW Police, Rural Fire Service, the State Emergency service and more than 200 locals.

Anyone with information about little William's disappearance should call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page.

​* William Tyrrell's names was formerly spelt "Tyrell". Police have now advised the correct spelling is "Tyrrell"