U.S. President Joe Biden has phoned the leaders of Israel and Palestine to express deep concern about the continuing violence.
Biden told Israeli Prime Minister Benjamin Netanyahu that he supports Israel's right to defend itself, but he also called for journalists to be protected following the airstrike that destroyed the offices of the AP.
Biden also spoke with Palestinian President Mahmoud Abbas for the first time since taking office.
He reaffirmed his commitment to strengthening their bilateral partnership, while calling for Hamas to stop its rocket attacks on Israel.
President Abbas, however, has little power in Gaza, which is controlled by Hamas.
The U.S. is not likely to speak directly to Hamas, though, because it regards the group as a terrorist organization.