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Pakistani commuters are stuck in a traffic jam in Karachi on June 3, 2014 following the arrest of Altaf Hussain, head of Pakistan's Muttahida Qaumi Movement (MQM) party, in London. The leader of Pakistan's MQM party, Altaf Hussain, has been arrested in London on suspicion of money-laundering, reports said on June 3 as panic spread through his home city of Karachi and protesters torched vehicles. AFP PHOTO/Asif HASSAN (Photo credit should read ASIF HASSAN/AFP/Getty Images)

Pakistani commuters are stuck in a traffic jam in Karachi on June 3, 2014 following the arrest of Altaf Hussain, head of Pakistan's Muttahida Qaumi Movement (MQM) party, in London. The leader of Pakistan's MQM party, Altaf Hussain, has been arrested in London on suspicion of money-laundering, reports said on June 3 as panic spread through his home city of Karachi and protesters torched vehicles. AFP PHOTO/Asif HASSAN        (Photo credit should read ASIF HASSAN/AFP/Getty Images)