Netanyahu Visits Gaza as Palestinians Mourn an Attack That Officials Say Killed Dozens

Prime Minister Benjamin Netanyahu visited Israeli troops fighting in the Gaza Strip on Monday, vowing to stay the course of the war even with the death toll mounting. His trip came hours after Gazan health officials reported that a devastating overnight strike on a crowded neighborhood had killed dozens.

It was the Israeli leader’s second known visit to Gaza since the war began. Mr. Netanyahu has been facing increasing pressure from the United States to lower the intensity of the war, but he said on Monday that Israel would “deepen” the fighting in coming days.

The strike late Sunday in central Gaza underscored the risk to civilians as fighting intensifies. Gazans were mourning the victims in the neighborhood, Al Maghazi, where many who have fled fighting in other parts of the enclave have sought shelter.

Photos of the aftermath on Monday showed a gray concrete building gaping with dark holes where rooms used to be. At the foot of the building was a mound of debris, where men appeared to be digging for survivors, or bodies, without the aid of any heavy equipment.

The Gaza Health Ministry initially said 70 people had died in Sunday’s attacks on Al Maghazi, with many others still buried. But the difficulty of reaching residents in Gaza, where electricity shortages and communications blackouts have frequently obscured the picture of the war’s fallout, meant the details were blurry.