UPDATE: Bones found in bushland during a search for missing toddler William Tyrrell have been confirmed by police as non-human.
However, police will continue to scour thick bushland in relation to the disappearance of the three-year-old after receiving a "breakthrough" tip-off in the past fortnight.
Earlier today, police located a number of bones during a search of bushland in Bonny Hills.
"Police located a number of bones and the Forensic Services Group will examine the bones to determine if they are animal or otherwise," a NSW Police spokesman said at the time.
"As with any search like this in bushland it is not unusual to find the remains of numerous animals," police said.
Police received a tip-off in relation to the toddler's disappearance that led them to an area of dense bushland in Bonny Hills.
Forensic officers arrived at the search site at Bonny Hills on the state's north coast about 4pm.
The discovery came a short time after the homicide detective in charge of the search arrived from Sydney.
Homicide commander Superintendent Michael Williams said at a press conference earlier on Monday that the search would not be the last in regards to this investigation.
"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 were conducting a line search by hand, and would be digging if they found anything significant.
"A search by hand and see what comes from that," Superintendent Willing said.
It is the second time that police have descended on the town of Bonny Hills this year in their investigation into William's disappearance.
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.
Police have said Mr Spedding is not a suspect in William's disappearance, but is a person of interest in the case.
"At the very highest he is a person of interest but he is not the only person of interest," Superintendent Willing said.
More to come.