PTI workers are in Islamabad.

PTI marchers enter D-Chowk

PTI supporters are in Islamabad to protest for Khan's release.

Imran Khan was re-arrested in the case on November 20.

Addressing the Islamabad administration, she said, “Muslims never attack fellow Muslims."

She asked PTI supporters to pledge not to leave D-Chowk until Imran Khan is released.

The government has offered an alternate place to PTI for protest.

The internet slowdown in Pakistan severely affected social media as well.

Naqvi warned that the PTI will face setbacks and that the "hidden hand" will ultimately fail.

Videos on social media showed protesters standing on containers that were placed to block their entry into the red zone.