Gunmen killed a PML-N leader in North Waziristan Agency, a tribal elder said on Tuesday. Shariat Khan, 35, was killed by assailants wearing masks late on Monday in Miranshah, agency headquarters of North Waziristan Agency. He was the president of PML-N's North Waziristan chapter. The tribal elder said that Khan had previously received threats from militants who suspected him of spying on them for Pakistan and the United States. However, the political administration denied that he was a government informant. Two pro-government tribal elders have been gunned down in South Waziristan in little more than a week. On Saturday, unidentified gunmen killed Hayatullah and on January 22 Ibrahim Mehsud.