Special report: Tension escalates in Iraq

Related: At least 5 people killed by truck bomb north of Baghdad ¡¡

  ¡¡BAGHDAD, Jan. 17 (Xinhua) -- A powerful blast rocked Sadr City neighborhood on Wednesday afternoon, an Interior Ministry source told Xinhua.

    "We are not sure about what caused the explosion yet, but our first report said that two people were killed and 10 others wounded," the source said on condition of anonymity.