AMMAN, Jordan—U.S. Secretary of State Antony Blinken used his meetings with Middle East leaders to make a fresh push for a humanitarian pause in the Israel-Hamas war as the Israeli military said it opened a temporary corridor to provide northern Gazans safe passage to the south. 

The Israel Defense Forces said it planned to allow traffic on Salah al-Din Road, a major north-south thoroughfare in the strip, for three hours Saturday afternoon, although residents said the route was unsafe.