U.N. Security Council diplomats and Muslim foreign ministers convened emergency weekend meetings to demand a stop to civilian bloodshed as Israeli warplanes carried out the deadliest single attacks in nearly a week of Hamas rocket barrages and Israeli airstrikes.

President Joe Biden gave no signs of stepping up public pressure on Israel to agree to an immediate cease-fire despite calls from some Democrats for the Biden administration to get more involved.

His ambassador to the United Nations, Linda Thomas-Greenfield, told an emergency high-level meeting of the Security Council that the United States was “working tirelessly through diplomatic channels” to stop the fighting.

But as battles between Israel and Gaza’s militant Hamas rulers surged to their worst levels since 2014 and the international outcry grew, the Biden administration — determined to wrench U.S. foreign policy focus away from the Middle East and Afghanistan — has declined so far to criticize Israel’s part in the fighting or send a top-level envoy to the region. Appeals by other countries showed no sign of progress.