Four US military helicopters attacked a farm in Mashahdeh village in eastern Syria near the Iraqi border on Sunday, killing eight civilians, including five members of the same family, Syria said. The Syrian Foreign Ministry summoned the US charge d'affaires in Damascus to protest over raid, Syria's state news agency SANA reported after state television said “Syria condemns this aggressive act and holds American forces responsible for this aggression and all of its repercussions,” SANA said, quoting a government official. The Iraqi charge d'affaires had also been summoned. The United States and the Iraqi government blame Syria for not doing enough to stop anti-US fighters, from infiltrating over the border. “The helicopters carried out an attack on a civilian building under construction and opened fire on workers inside the building, including the wife of the building guard, leading to the (killing) of eight civilians,” SANA said.