New drone footage shows what remains of Gaza City after two years of war as a ceasefire holds in its second day.

It will take about $70 billion to rebuild Gaza, according to an operational damage and needs assessment conducted jointly by the United Nations, the European Union and the World Bank. European and Arab nations, Canada and the U.S. appear willing to contribute to the estimated $70 billion needed to rebuild Gaza, the UN official said on Tuesday.

Violent clashes have erupted between Hamas and rival groups in several areas across Gaza, including an incident that culminated in an apparent public execution, as worries grow about the security situation following Israel’s withdrawal from parts of the territory.

Around 400,000 Palestinians have fled famine-stricken Gaza City since Israel launched a major offensive last month aimed at occupying it.

One week into the ceasefire in Gaza, Palestinians are returning to destroyed homes and trying to find shelter.

U.S. envoys met Israeli Prime Minister Benjamin Netanyahu on Monday aiming to corral Israel and Hamas to get the Gaza ceasefire plan back on track after an explosion of violence over the weekend that threatened to derail the week-old truce.

Hamas fighters battled rival Palestinian groups and beat suspected Israeli collaborators within hours of agreeing to a ceasefire that ended the two-year conflict in Gaza. The militant group set up checkpoints across the strip and engaged in gun battles with rivals who had received weapons from the Israeli military,

New drone video shows what remains of Gaza City after two years of war as a ceasefire holds in its second day.

The IDF says it carried out aerial attacks in Rafah after earlier reports of armed skirmishes involving their stationed troops and Palestinians. The attacks mark the first airstrikes Israel have launched since a US-brokered truce came into force earlier this week.