A senior Hamas official said the group will not disarm and may even grow after the war in Gaza, warning other countries against cooperating with Israel in the enclave.

U.S. Secretary of State Marco Rubio on Sunday fully endorsed Israel’s war aims in the Gaza Strip, saying Hamas “must be eradicated” and throwing the shaky ceasefire into further doubt.

Hamas said Tuesday that it would hand over all six living Israeli hostages due for release under the first phase of the Gaza ceasefire this week, as well as the bodies of four dead captives.The fragile Gaza truce took effect on January 19 after more than 15 months of fighting between Israel and Hamas,