In one case a pashun mob killed a man wearing jeans and t-shirt thinking he was mohajir - he was actually baloch.
MQM is in power in Karachi. Even if this have happened it was the duty of leadership to pecify and calm rather than instigating workers to kill other innocent people. Pakhtoon and other ethinicities are part of Karachi now and MQM has to accept this reality and believe in live and let live ideology. As I already said sanity should prevail over madness. Since MQM is in power, safety of all people living in Karachi is its responsibilty.