Updated | Police officer charged with murdering couple; van found at Grays Point

A 28-year-old police officer has been charged with murdering Jesse Baird and Luke Davies, whose bloodied clothing and other possessions were found in a skip bin at Cronulla.

Homicide squad detective Superintendent Daniel Doherty told a media conference today a white Toyota HiAce van, which police believe was used to transport the bodies of the two men, was found this morning at Grays Point.

Supt Doherty appealed for information about the van, which was hired from a firm in Mascot on Monday.

The van has the NSW registration CW 82 PM.

Bodies have not yet been located.

Supt Doherty said a police issued firearm was discharged at Baird's Paddington home.

He said ballistics tests had matched a discharged gunshot round to the firearm, which was checked back in to a police station at a later date.

Earlier

A man has been arrested by detectives investigating the suspicious disappearance of Luke Davies and Jesse Baird.

A police statement said, shortly after 10.30am today, a 28-year-old man presented to Bondi Police Station.

"The man was placed under arrest and has since been transferred to Waverley Police Station where he is assisting with inquiries," the statement said.

"Strike Force Ashfordby was formed by detectives from the State Crime Command's Homicide Squad after possessions belonging to the missing men were found in a skip bin on Wilbar Avenue at Cronulla on Wednesday morning."

Police will address the media at 2pm.

Earlier

Police are looking for a third person, reported to be a police officer, in their investigation of two missing men, whose bloodied clothing and other items belonging were found in a skip bin at Cronulla.

The missing men are Qantas flight attendant Luke Davies, 29, and his partner, former TV presenter Jesse Baird, 26. Mr Baird is a former presenter on Ten's Totally Wild and Studio Ten.

A police update on Friday morning said, about 11.30pm last night a search warrant was executed on a home in Waite Avenue, Balmain, as part of the investigation.

"Officers seized a number of items," the statement said. "No further information regarding items taken from the property is available at this time.

"Investigations into the matter are ongoing.

"Detectives are looking at a line of inquiry that a third person may be able to assist with the investigation. Police are currently trying to locate him."

The Sydney Morning Herald reported the person of interest was believed to be a NSW police officer.

Nine News reported Baird had expressed concern to friends about being stalked.

A police update on Thursday evening said, "Following inquiries, detectives are looking at a line of inquiry that a third person may be able to assist with the investigation.

"Police are currently trying to locate him. Detectives will continue to look at all past relationships and associations."

Bloodied clothing was found in a skip bin by a worker at Club Cronulla in Wilbar Avenue just after 11am on Wednesday.

A phone, credit cards, keys and personal items were also found in the bin.

Police said the clothing and other items belonged to Mr Davies and Mr Baird.

The initial police statement said, "Following inquiries, officers attached to Eastern Suburbs Police Area Command attended Jesse's home at Brown Street, Paddington, about 1pm on Wednesday.

"After entering the property, officers immediately established a crime scene.

"Police then attended Luke's home in Waterloo, but he has not been located. Their disappearances are being treated as suspicious."

The statement said information indicated Mr Davies was in Paddington on Monday February 19, but had not been seen since.

"Luke has not been seen since, his family have been unable to contact him and he has not been at work."

Lead police investigator, Detective Superintendent Jodi Radmore, said at a news conference, "We do believe, from the crime scene at Paddington and from property that was located at Cronulla, that there had been some sort of incident that has likely occurred at the Paddington address

"That has given us grave concerns for one, possibly both, their safety."

Mr Davies is of Caucasian appearance, 170cm-175cm tall with a medium build, brown hair and brown eyes. It is not known what he was wearing at the time.

Police are appealing for anyone with information to contact Waverley Police or Crime Stoppers on 1800 333 000.