U.S. President Joe Biden said Benjamin Netanyahu's approach to the war in Gaza was "hurting Israel more than helping Israel" in an interview aired Saturday, as the U.S. leader's impatience with his Israeli counterpart grows increasingly visible.

With Gaza's humanitarian crisis growing more dire and Biden's left flank in uproar, the U.S. president made contradictory remarks as to the question of a "red line" over Israel's threatened offensive on Rafah in southern Gaza.

Netanyahu "has a right to defend Israel, a right to continue to pursue Hamas," Biden said, but added that "he must pay more attention to the innocent lives being lost as a consequence of the actions taken."