According to a security source, two perpetrators were seen in the pickup truck which was parked near the entrance. The four are believed to be linked to two men behind car bomb attacks in Pattani last year, according to the source. An investigation found his mobile phone was last used in tambon Maphrao Tondiew in Pattani's Nong Chik district, the source said. Meanwhile, security has been beefed up in the far South following the car bomb attacks. In Songkhla's Hat Yai district, bomb detectors were deployed in key commercial areas.

Source: Bangkok Post May 10, 2017 21:56 UTC