A Thai forensic police officer inspects a burnt school building at a village in Thailand's restive southern province of Pattani December 27, 2007. The 90-student school building was burnt late Wednesday while the roads to the school were filled with standing nails to delay firefighters' access, the school principal said. More than 2,600 people have been killed since violence exploded four years ago in the four southernmost provinces of Yala, Narathiwat, Pattani and Songkhla, an independent Muslim sultanate until annexed by Buddhist Thailand about a century ago. REUTERS/Bazuki Muhammad (THAILAND)