SO SAD: Photos from The Russian Plane Crash that Killed All 224 People On Board

Lives gone just in a flash! A Russian passenger plane crashed Saturday in Egypt's Sinai Peninsula, killing all 224 people aboard. Many of the 224 passengers on flight were Russians returning from vacation. The passenger manifest included 17 children.

The cause of the crash still is unknown, but it is most likely due to a technical failure, with no evidence of any terrorist action, Egyptian Airports Co-Chief, Adel Al-Mahjoob told CNN Arabic.

But sources say ISIS is claiming the attacked the plane. Too bad! See more photos...

Anyway, Russian officials are also claiming that there were only 25 aboard and seven crew members.