Mueang Samut Sakhon police chief Pol Col Chaiyut Thomya said the four allegedly robbed the Myanmar woman out of Bt2,000 in cash at 5:20 am on Wednesday and forced her on a motorcycle to a deserted house and took turn to rape her.
One of them was identified as Chayungkorn Supsamniang, 25. The rest are two 18-year-old men and a 17-year-old boy.
The four were riding two motorcycles and found the victim walking alone.
They freed her later and they fled the scene but were captured by police after she filed a complaint with police.