The plan to oust the PML-N led government and topple Prime Minister Nawaz Sharif from power is reaching critical mass.

The last 48 hours saw the Pakistan Tehreek-i-Insaf (PTI) and Pakistan Awami Tehreek (PAT) anti-government protests morph Islamabad's Red Zone from a concert ground to a bloody battlefield, with at least three people killed and hundreds injured.

The deadly confrontation shows little signs of letting up, as both Imran Khan and Tahirul Qadri have encouraged their supporters to battle on, while negotiations with the government appear to be going nowhere - despite the Pakistan Army playing the role of 'mediator'.

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Read up on Saturday and Sunday's violent clashes