Live updates | Intense Israeli bombardments strike Gaza as the war rages on

A massive explosion at a hospital in Gaza City killed hundreds of people Tuesday, Hamas said, after intensifying bombardments near towns in southern Gaza rattled civilians where Israel had ordered them to take refuge. Hamas attributed the blast to an Israeli airstrike, but the Israeli military said it was not involved and the explosion was caused by a misfired Palestinian rocket.

Hamas' military wing also said an Israeli airstrike on a refuge camp killed a top Hamas commander.

Thousands of people trying to escape Gaza are gathered in Rafah, which has the territory’s only border crossing to Egypt. Mediators are pressing for an agreement to let aid in and refugees with foreign passports out. The U.S. hoped to break a deadlock with President Joe Biden headed to the region, but a planned summit in Jordan was postponed.