Police have charged Zlatko Sikorsky with the murder of 16-year-old Larissa Beilby, after the wanted man surrendered to police following a 27-hour stand-off on Queensland's Sunshine Coast.

Mr Sikorsky spent the night at the Maroochydore watch house after the siege at an Alexandra Headland apartment complex came to a peaceful end just before 6:30pm on Saturday.

Homicide detectives charged the 34-year-old with murder on Sunday morning, after confirming that a female body found in a barrel on Wednesday was Larissa.

She was last seen alive on June 15, but had made a post on social media three days later.

Detective Inspector Damien Hansen said Mr Sikorsky had been in a relationship with the 16-year-old, but would not comment on a possible motive for her death.

"I will say it's a very unique set of facts," Inspector Hansen said.

"He's not cooperating at this stage.

"He's in the watch house, he's been charged and he'll be spoken to again."

Zlatko Sikorsky has been charged with the murder of 16-year-old Larissa Beilby. ( Supplied )

Mr Sikorsky has also been charged with misconduct with a corpse.

He is due to face court in Maroochydore on Monday.

On Saturday night, Larissa's family and friends posted tributes to the teenager on Facebook.

"With a broken heart shattered into more than a million pieces our family is utterly destroyed to inform you all that Larissa has been taken from us," they wrote.

"Our beautiful girl has been reunited with our beloved wife and mother. Fly high our darling angel, until we see you again Rissy."

Another friend wrote, "You were such a bright, talented and amazing girl who will be terribly missed".

Acting Detective Superintendent Mark White said police worked around the clock on the case.

"Our thoughts are very much with Miss Beilby's family as they come to terms with and mourn her death," Acting Superintendent White said.

"We would like to thank the public for their assistance and cooperation throughout the early stages of this investigation."

Sorry, this video has expired Zlatko Sikorsky is taken into custody

Two others charged with accessory to murder

A 40-year-old woman from the Sunshine Coast suburb of Palmwoods and 38-year-old Joseph Geiger from Alexandra Headland have been charged with being an accessory to murder.

Mr Geiger is accused of harbouring Mr Sikorsky in his apartment.

The woman faced the Maroochydore Magistrates Court on Saturday, and both she and Mr Geiger will return to court on Monday.

Detective Inspector Hansen said the investigation was continuing.

"If we find any person who has assisted and aided them, particularly Sikorsky, they will be charged," he said.

Police gather outside the scene of the siege at Alexandra Heads on Saturday. ( AAP: Darren England )

The search for Mr Sikorsky ramped up on Wednesday, when officers investigating Larissa's disappearance went to a property in Buccan, south of Brisbane.

Later in the day, a Stapylton caravan park resident said she saw a female's arm hanging from a barrel placed in the tray of a ute.

An emergency situation was declared on the Sunshine Coast on Friday afternoon, when it emerged Mr Sikorsky was in a unit complex.

Most residents were evacuated and roads were closed off, with specialist police called in for negotiations with the wanted man.

The siege came to a peaceful end around 6:30pm on Saturday, when Mr Sikorsky surrendered to police.

"He gave himself up without incident," Detective Inspector Hansen said.