12 May Karachi riots

The 12 May Karachi riots, also known as Black Saturday riots, were a series of violent clashes between rival political activists in Karachi. The violence resulted in 58 deaths. The unrest began as the recently suspended chief justice Iftikhar Muhammad Chaudhry arrived at the Jinnah International Airport on 12 May 2007. Gunfights and clashes erupted across the provincial capital as lawyers, Pakistan Peoples Party (PPP), Awami National Party (ANP), Pakistan Tehreek-e-Insaf (PTI), and Pashtunkhwa Milli Awami Party (PMAP) activists, who supported the judge, and the pro-government Muttahida Qaumi Movement (MQM) activists took to the streets against each other. Pakistan Muslim League Quaid-e-azam PMLQ and MQM party workers, with support from president and military dictator Gen. Pervez Musharraf, were accused of launching highly coordinated attacks against lawyers, ANP, PTI, PPP, and news channels, especially Aaj News. Government machinery was used to block all major roads. Police was accomplice and a silent spectator to the violence. News media was attacked at Guru Mandir (Business Recorder Road) when MQM activists began firing at Aaj News headquarters which was shown on live television. Most of the 58 killed were part of opposition parties supporting Chaudhry.

Chaudhry's supporters had announced a public rally to welcome the judge while at the same time, the MQM also announced a demonstration of their own to protest against the politicisation of the issue of judge's suspension. The MQM made plans to deliberately converge at the mausoleum of Muhammad Ali Jinnah where the chief justice was to make an appearance to address a lawyers' convention and a bar association meeting at the 50th anniversary of the Sindh High Court Bar Association.