Hamas says no hostage will leave alive unless demands met

Hamas warns no hostage will leave Gaza alive unless demands met; a one-week truce saw 105 hostages released, 137 remain; Qatar mediates for new truce and release of more hostages; Hamas vows to fight Israeli forces; war in Gaza triggered by Hamas attack on Israel, resulting in high civilian casualties. A one-week truce in the war that collapsed on December 1 saw 105 hostages held by the group freed, including 80 Israelis released in exchange for 240 Palestinian prisoners.