Nouri al-Maliki
  • In this photo taken on Monday, May 20, 2013, Ali Karim weeps over his daughter's coffin before her burial in the holy Shiite city of Najaf, 160 kilometers (100 miles) south of Baghdad, Iraq.

    Explosion is latest in a string of attacks in a week of the most sustained sectarian violence since U.S. troops withdrew more than a year ago.

    LAST UPDATE : May 21, 2013, 7:34 PM EDT