AMMAN, Jordan — The United States will press Israel to ensure humanitarian aid is effectively distributed within Gaza, Secretary of State Blinken said Tuesday, forecasting upcoming talks as the Biden administration seeks to turn tentative increases in aid shipments into more widespread improvements for desperate civilians.

U.N. humanitarian officials briefed Blinken in the Jordanian capital about their efforts to improve conditions in Gaza, where hunger, disease and suffering are rampant following six-plus months of fighting between Israel and Hamas militants.