Gunmen in Syria posted video online showing the Russian citizen engineer Sergey Gorbunov who had been kidnapped in Syria.

Gunmen in Syria posted video online showing the Russian citizen engineer Sergey Gorbunov who had been kidnapped in Syria.

In the tape, Gorbunov hoped that Russian and Syrian authorities would work with the Red Cross to exchange him for the Saudi Khaled Suleiman, who was detained by the Syrian authorities in the city of Hama.

"If this does not happen within 5 days, they will behead me," Gorbunov said in the video.

However, the tape has yet to be confirmed.