The perpetrators of last year's deadly explosion at a Bangkok shrine originally chose a pier packed with Chinese tourists as their primary target and had amassed enough chemicals to make 10 equally powerful bombs, the chief of Thailand's police bomb squad told Reuters.
A bomb planted at the Erawan Shrine on Aug. 17 killed 20 people and turned a popular tourist site into a scene of carnage.
Another device, which was left at a crowded pier on Bangkok's Chao Phraya River but failed to explode, might have inflicted much greater casualties, said a leading security analyst.