Hostages are returning after 15 months in captivity as part of a ceasefire deal between Israel and Hamas, and with their freedom, the first details of their ordeals are emerging. Hamas has been designated as a terrorist organization by the United States, Canada and the European Union.

Hamas militants freed an American Israeli and two other men held hostage in the Gaza Strip and Israel released 183 Palestinian prisoners amid the cease-fire.

Israeli, will be released along with Yarden Bibas and Ofer Kalderon in exchange for about 90 Palestinians being held in Israeli prisons, the group said.

Hamas has agreed to release 33 Israeli hostages as part of a cease-fire agreement with Israel that has brought a pause to more than 15 months of fighting.On Saturday, the militant group freed the first American to be released in the latest truce,

CBS News foreign correspondent Chris Livesay spoke with the brother and sister of Keith Siegal, an American-Israeli who had been held captive by Hamas until his release a few days ago.

A freed Hamas hostage asked a heartbreaking 11-word question after being freed as part of a ceasefire deal between Israel and the militant organization

Israeli-American Keith Siegel is among the captives freed in a more controlled transfer after unruly crowds earlier in the week drew an outcry.

Keith spent a staggering six months of his captivity alone cumulatively, his brother said, adding that the last two months of his captivity were spent entirely alone.