Military and militia groups began rounding up and killing Tutsis "en masse", as well as political moderates irrespective of their ethnic backgrounds. The killing swiftly spread from Kigali to all corners of the country; between April 6 and the beginning of July, a genocide of unprecedented swiftness left between 500,000 and 1,000,000 Tutsis (800,000 is a commonly noted number) and moderate Hutus dead at the hands of organized bands of militia (Interahamwe). Even ordinary citizens were called on by local officials to kill their neighboring Tutsis who were called "Inyenzi" (cockroaches) by the local radio stations inciting fear and hatred. The president's MRND Party was implicated in organizing many aspects of the genocide. The Hutu genocidaires were abetted by the Radio Télévision Libre des Mille Collines broadcasting hate speech advocating violence against Tutsis. It broadcast at the same time as Radio Muhabura broadcast from Uganda, sponsored by the RPF and their Ugandan allies.