A 26-year-old diver who went missing off the Queensland coast shared a haunting story to Instagram just hours before he vanished.
Norwegian diver Didrik Hurum was with a group of divers east of Point Lookout off Stradbroke Island at around 10.10am on Wednesday.
Mr Hurum failed to return to the boat and police commenced a search and rescue operation at 10.45am.
Just hours before he went missing, Mr Hurum shared a video to his Instagram stories of the sun rising over the water as he headed out to sea.
The search for Mr Hurum continued on Thursday, however his family back in Norway has been told to brace for the worst.
"I've been very frank with the family with what I believe occurred and it's very unlikely that young Didrik is alive," Mitch Gray from the Queensland Water Police said on Thursday.
He added it is possible Mr Hurum may have blacked out while under the water.
Nine News reported Mr Hurum has been living on the Gold Coast for the past few years as he studies at Griffith University.
On his Instagram, Mr Hurum shared several photos and videos of him spearfishing.
His friend Brad Corbett told Nine News he treated Mr Hurum like a little brother and took him under his wing.
"Everyone that's close to him still can't believe it and we're all in shock," he said.
Do you have a story tip? Email: firstname.lastname@example.org