According to the Al Jazeera, the incident occurred when a motorcycle bomb exploded in the southern province of Yala.
No one has claimed responsibility for the attack so far.
Police said the attackers parked the motorcycle near a food stall and when the owner asked to remove it, the attackers ran away.
Later, when the woman tried to move the vehicle herself, it exploded.
The Internal Security Operations Command's southern branch spokesman Col Pramote Phrom-in said they have identified a group of insurgents responsible for the bombing.
A manhunt has been launched to nab the culprits, he added (ANI)