A video was posted online Saturday night showing a still image of journalist Kenji Goto, one of two Japanese hostages held by the Islamic State group, holding a picture of what appeared to be the body of fellow captive Haruna Yukawa, a private security contractor who was believed abducted in Syria in August.

In the photo, Goto is holding a composite of two images. In one of them, Yukawa is kneeling on the ground. The other image appears to show his decapitated body. The photo, if authentic, suggests Yukawa was executed after a 72-hour ransom deadline imposed by the terrorist group expired at 2:50 p.m. Friday Japan time.

The images drew immediate condemnation from Chief Cabinet Secretary Yoshihide Suga, the No. 2 man in Prime Minister Shinzo Abe's Cabinet.