Karon Rescue and the Royal Thai Navy were continuing a search on Thursday for a man named as Seo Seungin, 45, who was staying at the Kata Noi resort with a female companion.
PHUKET: A Korean tourist is missing, feared drowned, at Phuket's small, exclusive Kata Noi beach, police confirmed today.
''I was called to the Katathani Phuket Beach Resort about 5pm yesterday,'' said Lieutenant Santichai Srimai, of Karon Police Station.
''Staff there confirmed that one of their guests had gone swimming but had not returned to the beach.''
Little more is known at this stage about the circumstances of the man's disappearance.
It's also not clear whether a sea search is being mounted today for the missing Korean man, who is aged about 30.
The Phuket Lifeguard Service handed over care of swimmers at Kata Noi to the Katathani from June 20 under an innovative deal that put more lifeguards on two beaches.
The Lifeguard Service was able to redeploy its five Kata Noi lifeguards to strengthen patrols at Karon beach.
The resort said in its arrangement with the Phuket Provincial Administrative Organisation that it would station eight lifeguards on Kata Noi, with patrols operating between 9am-7pm.
Lieutenant Santichai told Phuketwan he would be returning to the resort this morning to interview staff and others about the case.
He did not know whether the man was a solo traveller or holidaying with others.
A guest who recently stayed at Katathani told Phuketwan today: ''For the system to work there needs to be dedicated swimming areas at various points along the beach that are enforced.
''People just jump in and swim anywhere.''
At other Phuket beaches, the safe, patrolled areas are clearly marked by red and yellow SWIM HERE flags. Unsafe areas are usually marked with red flags on danger days.
A senior manager at the Katathani said today he had not been informed about the missing guest.
Fewer deaths have been reported at Phuket beaches so far in 2015 than in previous years.
The reduction in drownings is attributed to more comprehensive warnings and the improving skills of Phuket's lifeguards.