Thai immigration police at a border pass in Songkhla province are on the lookout for a suspected Iranian assassin on the run after killing a businessman from Dubai. Thai authorities received a request from Dubai to locate suspect Rahmat Asadi who entered Thailand on Wednesday. Police suspect he may try to escape to Malaysia in order to return to Iran.Asadi is thought to be an expert killer and allegedly has ties to terrorist groups. Border checkpoints in the three southernmost provinces have been given his picture.