A son of al-Qaeda-linked warlord Sirajuddin Haqqani, whose network is fighting in Afghanistan, has been killed in a US missile attack in North Waziristan, officials said on Friday. The death of Mohammed Haqqani, who was involved in the Afghan network, in an attack thought to have been targeting his father will be a symbolic blow to the Haqqani leadership and a further boost for the controversial US drone war. He died when a US plane fired two missiles into a compound and vehicle on Thursday in the Dandey Darpa Khel area of North Waziristan, a Haqqani bastion in the lawless tribal belt on the Afghan border, a Pakistani official said. His father Sirajuddin now commands the Haqqani network, which is affiliated to the Afghan Taliban and al-Qaeda, taking over from his elderly father, the well-known Soviet resistance commander Jalaluddin Haqqani.