Ethnic tensions between Pashtun population and ethnic Urdu-speakers has been suspected to be the cause of the attacks that were reported in Karachi on Wednesday, Apr 29. These tensions led into the gun attacks that were reported on Thursday, Apr 30.
Earlier on Wednesday two Muttahida Quami Movement (MQM) activists were gunned down by unknown shooters which started off street violence. Paramilitary rangers patrolled city's trouble spots on Thursday, as officials said the death toll hit 26. The officials also are worried if the funerals set for later in the day could lead to more tension.
Pashtun population dominate the country's militant-infested North Western Frontier Province (NWFP) and ethnic Urdu-speakers, who are descendants of migrants from India.
This comes just two days after Pakistan launched offensive against the Taliban Militants in the NWFP. Pakistan government had asked the people of the nation to co operate with this move.