PALU - At least two bomb explosions have rocked the Poso district in troubled Central Sulawesi amid ongoing raids by local security authorities implementing last December's peace accord. Central Sulawesi Police spokesman Adj. Sr. Comr. Agus Sugianto said on Friday that the home-made bombs exploded in the disused office of state-owned water company PT PDAM at Ratulene village, around 15 kilometers from Poso, on Thursday evening. No injuries were reported in the consecutive bombings that blew out windows and shattered floors in the building in the subdistrict of Poso Pesisir. Agus said the blasts were heard at the Poso Pesisir police station near the scene, adding that the bombs were of low explosive yield. The first bomb exploded at 6:35 p.m. followed by the second 10 minutes later, he said. At least two unexploded bombs were discovered by a police bomb squad which arrived one hour after the first explosion.