BANGKOK (AFP) - Suspected insurgents killed six people in a bomb and gun attack in Thailand's deep south on Wednesday, police said, the latest in a string of blasts to rock the region in recent weeks. A roadside device struck a pick-up truck carrying a group of seven villagers in Narathiwat province's Ra Ngae district and then unknown gunmen opened fire. "A team of soldiers went to the area to rescue them but militants triggered a second explosion," injuring two troops, a police officer in Ra Ngae told AFP by telephone. Thailand's southernmost provinces have been plagued by more than eight years of conflict that has claimed the lives of more than 4,800 people.