Nearly three hundred people are reportedly injured following clashes between the federal police and anti-Nawaz Sharif government protestors.
The clashes broke out Saturday when thousands of protesters who have been camping outside parliament for two weeks demanding that Prime Minister Nawaz Sharif step down, tried to storm his home in the capital, using cranes to remove barricades.
Police responded with tear gas and rubber bullets.
The protesters are part of two separate mass rallies organized by cricketer-turned-politician Imran Khan and firebrand cleric Tahir-ul-Qadri. They have alleged massive fraud in the May 2013 election that saw Sharif sweep to power with a huge majority.
The prime minister rejects calls for his ouster as unconstitutional, and his attempts to find a negotiated end to the political crisis have not succeeded.
International observers have said the vote was largely free and fair.
The stalemate provoked rally leaders late Saturday to call for the demonstration to move toward the nearby official residence of the prime minister, who was away in his home city of Lahore at the time. Shortly after they began the march and started removing shipping containers used as barricades, police fired tear gas and rubber bullets.
The crackdown forced the protesters, some armed with clubs, to retreat, and hospital officials confirmed receiving scores of people, including police officers, with “minor and major wounds.”