Supporters of Pakistan Muslim league Functional (PML-F) march on a car as part of an election campaign in southern Pakistani port city of Karachi on May 4, 2013. Pakistan is scheduled to hold parliamentary elections on May 11. (Xinhua/Arshad)
Pakistan's former cricket star-turned-politician Imran Khan (C) arrives during an election campaign rally in Charsadda, Pakistan, on May 4, 2013. Pakistan is scheduled to hold parliamentary elections on May 11. (Xinhua/Umar Qayyum)
Pakistan's former cricket star-turned-politician Imran Khan (R) speaks during an election campaign rally in Charsadda, Pakistan, on May 4, 2013. Pakistan is scheduled to hold parliamentary elections on May 11. (Xinhua/Umar Qayyum)
Pakistan's former cricket star-turned-politician Imran Khan (C) leaves during an election campaign rally in Charsadda, Pakistan, on May 4, 2013. Pakistan is scheduled to hold parliamentary elections on May 11. (Xinhua/Umar Qayyum)