What we do and don't know about the disappearance of Jesse Baird and Luke Davies

NSW police are investigating after former Network Ten presenter Jesse Baird and his partner Luke Davies went missing in Sydney. This is what we know so far.

Former Network Ten presenter Jesse Baird (left) and his Qantas flight attendant boyfriend Luke Davies (right) attended a Pink concert together in Sydney last week. Source: Instagram

Former Network Ten presenter Jesse Baird, 26, and his Qantas flight attendant boyfriend Luke Davies, 29, disappeared from Sydney's east on Monday.

Neither has been heard from since.

What do we know about their disappearance?

Their disappearance is being treated as suspicious after blood-stained possessions belonging to both men were found in a skip bin in Cronulla about 11am on Wednesday.

Two hours later, Baird's terrace home at Brown Street in Paddington — nearly 30km away from the Cronulla site — was declared a crime scene after police officers found blood inside the property.

Davies was not at his home in nearby Waterloo, although police believe he was in Paddington on Monday.

His family has been unable to contact him and he hasn't been at work, police said on Thursday.

Police are investigating the suspicious disappearance of 29-year-old Luke Davies. Source: Instagram / NSW Police

Detective superintendent Jodi Radmore said it was likely some kind of incident had occurred at the Paddington house before the men's disappearance.

"Witnesses talked about some shouting on Monday earlier in the morning," she told reporters on Thursday afternoon.

"But it wasn't reported to police at the time ... it was only reported to police (on Wednesday)."

Early investigations indicated there was a struggle, with furniture moved around in the home, Radmore said.

Blood found at the property also indicated someone had suffered a significant injury.

Jesse Baird's Paddington home was declared a crime scene after officers found blood inside the property. Source: Instagram

A worker contacted authorities after finding the personal items "that appeared to be unusual" while putting rubbish into the bin at Cronulla, she said.

Police found a phone, credit cards, a wallet, and a set of keys inside the skip.

Two cars have also been seized from the Paddington property, along with a third from another location.

On Friday, police said a 29-year-old man was in custody as part of investigations into the disappearance.

What don't we know about their disappearance?

While the possessions found in the Cronulla skip were bloodied, and the blood inside Baird's Paddington home indicated a serious injury, police could not yet say if one or both of the men had been harmed.

It is not known what either man was wearing at the time of their disappearances.

Radmore said one of the men was still using social media on Tuesday evening, but wouldn't confirm who.

Police have asked anyone with any information to come forward.