Thai authorities said on Monday that they found five pickup trucks with nearly 100 Rohingya people the day before in Hua Sai district, Press TV reported.
Thai officials say two of the pickup drivers were detained for questioning over human trafficking.
Thousands of Rohingya Muslims have fled the violence in Myanmar’s Rakhine State since 2012.
Myanmar’s government has been repeatedly criticized by human rights groups for failing to protect the Rohingya Muslims from attacks carried out by Buddhist extremists.
The United Nations has described Myanmar’s 800,000 Rohingya Muslims in Rakhine as one of the world’s most persecuted minorities.