Three of them were charged with entering the Kingdom without permission and another was charged with overstay.
The first three sneaked into Thailand in August, but they could not find a job and decided to seek opportunities in Phuket while the latter was allowed to stay until October 31 but did not submit a request for extension of stay.
They took a Bangkok-Phuket bus but police were waiting to catch them at Surat Thani before they could proceed further.
The law has been strictly applied to immigrants during the pandemic to prevent a second wave of the coronavirus, which could be brought from other countries, officials have said.