An assailant fired an M-79 grenade into a residence of top health official in Lak Si district early Monday morning but there were no reports of injuries.
Police were alerted shortly after midnight that residence of permanent secretary Narong Sahamethapat in Soi Changwattana 14 was hit by explosion. At the scene, police found that the blast slightly damaged walls of the house and a vehicle parked inside the house.
Amorn Sahamethapat, sister of Narong, told police that she heard the sound of explosion in front of the house before that of a motorcycle speeding away. Narong was not in the house at the time of the attack.
Police quoted bomb squad as saying the grenade was an M-79 fired from north of the house and about 15 meters from the house. They will examine footages of the security cameras near the house to find the assailants.
Narong is known for his stance against the caretaker government and he was criticised for his warm welcome for rally leader Suthep Thaugsuban to the ministry for discussion.