7 attack: Hamas spent more than a year planning its assault on Israel. Here’s what we know about those freed by Hamas so far.

Hostages: More than 100 held in the Gaza Strip have been released. More than 20,000 people have been killed in the Gaza Strip during the war between Israel and Hamas, according to the Gaza Health Ministry. The Israel Defense Forces on Friday announced an expansion of its operations in Khan Younis. An estimated 100,000 Palestinians have fled to the crowded southern Gaza city of Rafah in recent days, the U.N.