U.N. member nations have voted overwhelmingly to demand an immediate ceasefire in Gaza, the release of all hostages held by Hamas, and unrestricted access for the delivery of desperately needed food.

The U.S. vetoed a draft U.N. Security Council resolution that demanded an "immediate, unconditional and permanent ceasefire" between Israel and Hamas militants in Gaza.

Israeli attacks have killed at least 42 people across Gaza since dawn, medical sources told Al Jazeera, as the United Nations General Assembly prepares for a vote urging an unconditional ceasefire in the besieged enclave.