At least 12 civilians from two families including seven girls were killed in a roadside bomb blast in the southern Afghan province of Helmand, local officials said. The incident happened in the Gowband area of Gereshk district of the province when a vehicle set off the roadside bomb at around 2 PM, provincial spokesman Daoud Ahmadi told TOLO news Saturday. "Twelve of our innocent civilians were killed in the blast, which is seven girls, three men and two older women – all members of two families," he said. He said that the insurgents had "placed the roadside bomb to target the local troops." No group including the Taliban has claimed responsibility for the blast. Gereshk is one of the more insecure districts in the province with insurgents regularly planting improvised explosive devices. At least two people were killed and four were wounded in an IED blast on August 22, and in early July seven people including five children were killed in three separate blasts over three days.