UNICEF says bullets hit a convoy delivering aid in Gaza a week after an Israeli airstrike killed seven World Central Kitchen workers.
The United States assisted Israel in shooting down dozens of drones and missiles fired by Tehran.
Biden made clear in a call to Netanyahu that the U.S. would not participate in any offensive action against Iran.
“The rulings and judgment in this case will set the stage for how future combat is conducted by the United States."
A National Security Council spokesperson said, “The United States will stand with the people of Israel and support their defense against these threats from Iran."
Iran launched drones toward Israel Saturday, the Israeli military announced.