
The explosives, of unknown kind, was in a black cardboard box placed at the mouth of a small soi between the Army headquarters and the Army's Survey Department.
The box was spotted at around 6 pm by bystanders at the Rajdamneon Boxing Stadium across from the Army headquarters.
There is no initial comment available from police about the motive of the explosion.
One of the bomb disposal officer lost his thumb and the other injured not seriously.
The bomb site has not yet been sealed off and there are barricades erected around it. Sniffer dogs have been used to detect more possible explosives at the scene and nearby areas and none has been found.
The Nation