Military officials in southern Thailand say eight soldiers have been killed in a roadside bombing.
Authorities say two soldiers and two civilians were wounded in the blast Saturday morning in the Muslim-majority Yala province.
A military spokesman said the soldiers were returning home in a truck after finishing a patrol when a bomb destroyed the vehicle, killing the eight soldiers instantly.
No group has taken responsibility, but rebel groups have carried out many similar attacks in the region.
The insurgents are a shadowy group believed to want more autonomy for the south, but have no united, public face.
Thailand is majority Buddhist, but its three southern border provinces with Malaysia - Pattani, Narathiwat and Yala - are 80 percent ethnic Malay Muslim.
More than 100 years ago they formed an independent Malay sultanate, until Thailand seized the territory.
A simmering resentment against Thai Buddhist rule exploded in 2004 in fighting that has left more than 5,000 people dead, most of them civilians.