Authorities in the South Korean resort island Jeju on Monday said they have arrested five more Vietnamese among 59 tourists who allegedly disappeared right after arriving here on a trip last month.
The five suspects, including two women, were found at a hotel in western Jeju, near a farming zone on February 8, according to Vietnamese media reports.
Authorities earlier had seized 28 others, including seven women, in several locations across the island.
The suspects reportedly said that a group of people had sheltered them and helped them find jobs for the past month.
On January 12, a group of 59 Vietnamese visiting South Korea for holiday reportedly disappeared from their hotel in Jeju, allegedly to look for jobs illegally.
Authorities said they are still looking for the remaining 26 missing tourists.
All tourists are allowed to enter and stay on the resort island without a visa for up to 30 days.
According to the Korea Tourism Organization, around 170,000 Vietnamese tourists visited the country last year, up 20 percent from 2014.
There were 4,353 tourists that reportedly left their tour and illegally stayed on the island of Jeju last year. In 2011, there were 282 cases.