Klong Tan police received a call reporting "bomb-like sounds" at 11:30pm and rushed to the scene with explosive ordnance disposal (EOD) officers.
They found that the initial grenade, probably from an M-79 grenade launcher, landed on a one-storey house in Soi Ekamai 30 Yeak 3. It came through the roof and exploded near the bed of Boonchuay Pimsamrit, 43, who was resting. He was injured from the bomb shrapnel and was sent to nearby Petcharavej Hospital.
The second grenade landed on a second, two-storey home in Yeak 4, about 100 metres from the first explosion. Home owner Phanomphrai Panyasai, 49, was not in the house when the explosive went off, with shrapnel found on an empty bed.
Pol Col Supot Phromsiri, deputy superintendent of Metropolitan Police Bureau’s Division 5, said at the scene that witnesses confirmed hearing three bomb-like sounds, but investigators as of Friday morning had found evidence of only two explosions.
Both homes hit were about 200 metres from the residence of Mr Jarun, so it is uncertain whether he was the target of incompetent shooters. Pol Col Supot said the police had already increased security surveillance around Mr Jaran’s house.
Update: Pol Col Kamthorn Ouicharoen, superintendent of the city police EOD unit, said on a local radio interview Friday morning that it was proved that the grenades were 40mm explosives fired from one or more M-79 launchers. The weapons have an effective range of around 400 metres.