The Council for National Security, which led a coup against Thaksin Shinawatra, the prime minister, on September 19, have implied that Thaksin, or soldiers or police still loyal to him, were behind the blasts.


Thaksin has denied any links to the bombs, which also wounded 38 people.


Some analysts say Muslim separatist fighters from southern Thailand may have been behind the bombings, although in their three-year campaign they have not operated far beyond their immediate region.


On Friday, King Bhumibol Adulyadej approved the lifting of martial law in Bangkok and nearby provinces.