ISLAMABAD, July 26, 2018 (News Wires) -- Pakistan was gripped by electoral chaos on Thursday with the outgoing ruling party denouncing "blatant rigging" in the pivotal general election and rejecting unofficial, partial results suggesting victory for former cricket champion Imran Khan. Results were still being tallied Thursday, hours after Khan's supporters took to the streets to celebrate victory in an election opponents have said the powerful military rigged in his favour. Local media said roughly half the votes had been counted more than 17 hours after polls closed, an unprecedented delay that has fuelled widespread fears over the legitimacy of the exercise. But newspapers and television channels were predicting victory for Khan's Pakistan Tehreek-e-Insaf, with the partial results giving him at least 100 seats so far in the National Assembly, the lower house. A majority of 137 seats is needed to form a government.