Several videos have emerged of the gruesome scene, but it remains unclear if the three were alive or dead at the time.

Israel's military says it is reviewing an incident in which its soldiers were filmed apparently tossing bodies off of a rooftop in the West Bank.

The sisters of an Israeli woman kidnapped and killed by Hamas have described the “inhuman” conditions in which she was held captive, telling CNN they have been living “a nightmare” since her body was recovered by the Israeli military in an underground tunnel in Gaza.

Protesters rallied on the East Side, between East 47th street and 2nd Avenue, calling on world leaders to make the hostages' return a top priority.