Four foreign men were arrested for overstaying by from 234 days to over five years during random visa inspections in Phuket on Wednesday morning.
Immigration officers made passport checks at locations where overstayers were likely to be staying as part of "Operation X-ray‘’, aimed at catching visa offenders.
They arrested two Egyptians, one Pakistani and a Russian.
The four were an Egyptian who had overstayed for 1,898 days; a Pakistani with 1,734 days overstay; an Egyptian with a 234-day overstay and a Russian with 413 days.
Their full names were not released.
All were charged and handed over to local police.
The owners of the places they stayed were fined for not reporting foreigners staying there within 24 hours of their arrival.