Two Tak Bai police investigators were killed and three wounded on Sunday during a drug search at a palm plantation hut in Ban Bueng Chalam, tambon Phrai Wan. The gunman, armed with an M16, remains at large and the area has been sealed off as a danger zone. For businesses in Tak Bai and nearby districts, expect road checkpoints, closed access to plantation areas, and possible disruption to movement and deliveries while the search continues.