Police said a homemade bomb exploded Sunday at an abandoned house in a part of Indonesia with a history of deadly violence between Muslims and Christians. The building was slightly damaged, but there were no reports of injuries, AP reported. Lt. Col. Muhammad Kilat, a spokesman at the Central Sulawesi police, said police bomb squads had arrived at the village of Kasiguncu, about 10 kilometers (6 miles) north of the district town of Poso to investigate.