The fighting between Israel and Hamas was the most intense since a 50-day war in the summer of 2014.
“We have sirens. Let’s go. Let’s go. Let’s go," CNN Jerusalem correspondent Hadas Gold told her crew as the warning sounded in Ashkelon, north of Gaza.
Hamas and other armed groups fired rockets toward Israel in an escalation of the conflict sparked by weeks of tensions in Jerusalem.
It's the latest in a series of confrontations between Israeli police and Palestinians that threatened to push the contested city toward wider conflict.
The unrest came a day after violence in which Palestinian medics said more than 200 Palestinians were wounded in clashes around the Al-Aqsa mosque.
A U.S. return to the deal would be the biggest and most controversial foreign policy initiative in the early months of Joe Biden's presidency.
Some 100,000 people crushed together to celebrate the festival of Lag BaOmer. A stampede left dozens dead.
The group, Lehava, heightened recent unrest in the holy city, sparked by Israel's now-reversed decision to block Palestinians from praying there during Ramadan.
Among the dead were at least 28 patients on ventilators battling severe symptoms of the coronavirus.
In private remarks to the pro-Israel lobby last month, Rep. Michael McCaul (Texas) also spoke of pressuring Saudi Arabia to recognize Israel without an Israeli-Palestinian peace deal, according to a recording obtained by HuffPost.