An MK-II hand grenade was hurled into Tonson Tower, a 19-storey high-rise office building in Bangkok's Chidlom area but the bomb has failed to explode.
Earlier at around 9pm, on Monday night, M-79 grenade was shot and landed at a home of Gen Noppadol Intapanya, a retired army general, in Nonthaburi Soi 41, nor far from the office of the National Anti-Corruption Commission (NACC).
The explosion left a hole in the lawn and damaged the wall but no one was wounded. Bomb experts inspecting the scene found it was M-79 grenade. Police believed the attackers may have targeted the NACC office but missed, The home owners said they have no conflict with anyone. On March 5, a MK II hand grenade was thrown into the NACC premises but no one was wounded.