Hostilities between Israel and the Palestinian Islamist group that runs Gaza escalated on Tuesday as each side attacked the other with aerial bombardments that recalled their last major conflict in 2014.
A 13-story residential block in Gaza collapsed after one of several dozen Israeli air strikes, albeit after an Israeli warning, as Israelis reported explosions and sirens more than 70 km (45 miles) up the coast from Gaza. Thirty-one people were reported dead: 28 in Gaza and three in Israel.
Late into the night, Gazans reported their homes shaking and the sky lighting up with near-constant Israeli strikes.
The fighting between Israel and Gaza's armed factions was triggered by clashes between Palestinians and Israeli police at Jerusalem's al-Aqsa Mosque on Monday.
Smoke rises from a building after it was destroyed by Israeli air strikes amid a flare-up of Israeli-Palestinian violence, in Gaza, May 11. REUTERS
Reuters reported 28 dead and above a partial description of what has happened