Uttar Pradesh police officer Zia-ul-Haq was apparently murdered by a mob in Balipur which was angry after the killing of village head Nanhe Yadav, the CBI has said.

While underlining that these are initial findings by the agency based on statements of eyewitnesses, CBI sources said its probe so far has revealed that the mob which had gathered after the killing of Yadav assaulted Haq and someone from it shot him dead.