Islamabad: Pakistan Tehreek-i-Insaf (PTI) chief Imran Khan has once again urged the Supreme Court to intervene in his case against the government over rigging in the last general election.

Addressing a press conference Wednesday, the PTI chief said his party was open for "Supreme Court-led, but time-bound investigations into the results of general elections," Dawn online reported.

He was accompanied to the meeting by Jamaat-i-Islami (JI) chief Sirajul Haq.

Khan reiterated his demand for Prime Minister Nawaz Sharif's resignation.

Sharif had written to the SC Aug 13 asking to set up a three-member judicial commission to "probe allegations which the PTI levelled against former Supreme Court chief justice Iftikhar Mohammad Chaudhry, caretaker Punjab Chief Minister Najam Sethi and a number of Election Commission officials".

"But this does not mean that we have backed down from our original demand for Nawaz Sharif's resignation because we feel that the government will not allow a neutral investigation in his presence," Khan said.

Government negotiators and PTI members met a couple of times to resolve the issue, but could not come to a consensus.