Authorities in South Korea have arrested two Vietnamese men suspected of helping visitors to the resort island of Jeju overstay and work illegally, according to a news report.
Sisa Jeju news website reported that one of the suspects was arrested on January 22.
The 35-year-old man, whose name has not been revealed, entered the island in March last year. He had worked illegally at a construction site until he was caught.
The man admitted to helping five others find jobs at the same site, for a fee of US$15,000 each.
Another man, 41, was arrested and deported on January 16, after authorities discovered that he had aided three illegal workers, who came in as tourists. He told police he had received $500 from the three tourists.
In South Korea, foreign workers are required to have a work visa. Recruiters need to be licensed.
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.
Authorities said they are still looking for 31 missing tourists after managing to capture 28 others.
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 last year. In 2011, there were only 282 cases.