Three Thai soldiers were injured when insurgents detonated a bomb to ambush their unit in Thailand' s southern province of Narathiwat Monday morning. The attack occurred on the Joh I Rong-Paphai Road in Luboh village in Joh I Rong district at 6:55 am, Thai media reported Police said five soldiers on three motorcycles to the Joh I Rong railway station to guard it when they were ambushed. Insurgents detonated a homemade bomb and opened fire at them. The two sides exchanged gunfire for about five minutes before the insurgents retreated. Thailand's deep South comprises mainly the three southernmost provinces of Yala, Pattani, Narathiwat, and some parts of Songkla province. Insurgent violence has killed over 4,000 people in the deep South since its resurrection in January 2004.