A special court established under the Official Secrets Act extended Pakistan Tehreek-e-Insaf (PTI) Chairman Imran Khan's judicial remand till September 13 in the cipher case, hearing of which was held at the Attock District Jail, sources told Geo News.

Judge Abual Hasnat Zulqarnain, who arrived at the jail to conduct the hearing, issued the decision in the case of the missing cipher, a classified state document that Khan had waved during his political gathering ahead of his ouster from office last year.

Hearing of the case took place at the Attock District Jail following approval by the Law Ministry amid security concerns expressed by the Interior Ministry.