The CCTV footage was captured at Sydney Airport and features a man police are keen to speak with as they continue to investigate the disappearance of a Korean born Sydney resident Sang Don Yo, who hasn't been seen for almost four years.
The man was seen dropping Mr Yo's wife at the airport a short time after his disappearance, police said.
Mr Yo, a Korean national aged 52 at that time, vanished shortly after leaving a business on Bridge Street, Lidcombe, on March 6, 2013.
Detective Senior Constable Michael McGuirk in charge of the Strike Force Linderman said in an exclusive interview with SBS Radio Korean Program, the police have carried out 'exhaustive inquiries' since launching Strike Force Linderman to investigate Mr Yo's disappearance but have yet to crack the case.
'At this stage of the investigation, we strongly believe that Mr Sang Don Yo has met with foul play.
According to the detective, the police are cooperating with the Korean officials to chase up the whereabouts of the missing Korean mans wife whom Sang Don Yo remarried in Sydney.
Detective McGuirk said, she must have gone back to South Korea.
He appealed to the Korean community for any information seemingly related to the case.
All information is welcome, no matter how insignificant it might appear, he added.
Police are urging anyone with information in relation to this incident to call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page:
