U.S. Secretary of State Marco Rubio on Friday toured a U.S.-led center in Israel overseeing the Gaza ceasefire, as the Trump administration worked to set up an international security force in the territory and shore up the tenuous truce between Israel and Hamas.

Trump sends a flurry of top officials and aides to Israel - led by his vice president - to make sure a Gaza ceasefire moves on to challenging second phase.

Secretary of State Marco Rubio said the Israeli Knesset's move towards the annexation of the West Bank could threaten the Trump-backed Gaza ceasefire. Rubio made the comments ahead of his trip to Israel to help oversee the fragile truce between Hamas and Israel.

Secretary of State Rubio declared UNRWA won't assist Gaza aid delivery, calling the U.N. agency a "subsidiary of Hamas" amid the U.S.-brokered ceasefire.

U.S. Secretary of State Marco Rubio said Friday that the United States continued to support Israel and was committed to the ceasefire in Gaza, even as the deal has continued to face hurdles and Israelis have questioned how exactly the deal will be sustained and how much the U.