The war has devastated the Palestinian economy and left nearly all of Gaza's population in poverty, with life indicators like health and education regressing by 70 years, Philippe Lazzarini, Commissioner-General of the United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) said on Wednesday on social media platform X, citing a latest UN study as reported by Xinhua news agency.

"The longer this goes on, the longer it takes to bring back hundreds of thousands of girls and boys to a learning environment, the more extreme the challenges will be to undo these huge losses," he added.

Israel has been launching a large-scale offensive against Hamas in Gaza to retaliate against a Hamas rampage through the southern Israeli border on October 7, 2023, during which about 1,200 people were killed and around 250 taken hostage.

The Palestinian death toll from ongoing Israeli attacks in the Gaza Strip has risen to 42,792, the Gaza-based health authorities said in a statement on Wednesday.