Question: what happened on 12 may 2007 in karachi?
Answer: 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 unrest began as the recently suspended chief justice Iftikhar Muhammad Chaudhry arrived at the Jinnah International Airport on 12 May 2007.