Suspected Muslim insurgents opened fire on a commuter van in Thailand's restive south Wednesday, killing eight passengers, police said. The driver of the van was injured in the attack, which took place about 9:30 a.m. local time (0230 GMT), said police Col. Apirak Sangkao, chief of the Yala police force. The van was shuttling people from the Betong district of Yala province to Hat Yai, the south's major city, in the neighboring province of Songkhla. The attack came as authorities beefed up security around the Tuesday anniversary of the founding of the Barisan Revolusi Nasional, or National Revolution Front separatist group. Police had warned that insurgents might try to mark the anniversary with violence.