MIRANSHAH (AFP) An Afghan Taliban commander and close relative of Afghan warlord Sirajuddin Haqqani was among those killed in a recent US missile strike, Pakistani security officials said Wednesday. A US drone fired two missiles into a vehicle in Qutabkhel village in North Waziristan tribal district on Tuesday, killing four militants. Afghan Taliban commander Saifullah travelled to the region from Afghanistan three days ago and was killed in yesterdays US missile strike, a senior security official in the area told AFP. The information was based on intelligence intercepts, the official said. He described Saifullah as the first cousin of Sirajuddin Haqqani, who runs the Haqqani network created by his father, Afghan warlord Jalaluddin Haqqani. The network is based in North Waziristan. The group is blamed for fuelling the nine-year insurgency in Afghanistan; attacking US-led NATO troops and working to destabilise the Western-backed government of Afghan President Hamid Karzai. Another security official confirmed Saifullahs death.