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Undated photos taken from the Islamic State group’s online magazine Dabiq that purport to show Ole Johan Grimsgaard-Ofstad, from Oslo, Norway, left, and a Chinese national, who the extremist group claims to be holding hostage. (Credit: Dabiq-ISIS online publication)

Undated photos taken from the Islamic State group’s online magazine Dabiq that purport to show Ole Johan Grimsgaard-Ofstad, from Oslo, Norway, left, and a Chinese national, who the extremist group claims to be holding hostage. (Credit: Dabiq-ISIS online publication)