The 2010 Karachi riots Violence started Process_start on August 3 , 2010 , after the assassination Killing of Parliament member Raza Haider , a member of the Muttahida Qaumi Movement political party , on the night of August 2 , 2010 , in Karachi , Pakistan .

The Muttahida Qaumi Movement ( MQM ) represents Presence the Urdu-speaking Muhajir and is a political rival of the Pashtuns who have migrated to the city from northwest Pakistan .