What is Unrwa?
Unrwa was established in 1949 - a year after the Nakba (or catastrophe) in which 750,000 Palestinians were forced from their homes during the creation of Israel - to provide healthcare, education and humanitarian aid to Palestinians in Gaza, the occupied West Bank, Jordan, Syria and Lebanon.
The agency has 30,000 employees in total, 13,000 of whom are in the Gaza Strip.
In the besieged enclave, it runs 183 schools, 22 health facilities and seven women's centres, among several other facilities.
Its schools are attended by 286,645 students in Gaza, while its medical facilities have 3.4 million average visits per year, according to UN data.
At least 136 of the agency's 13,000 staff members in Gaza have been killed by Israeli attacks since the war broke out on 7 October.
Its schools, facilities and shelters have been repeatedly targeted by Israeli bombardment, with scores of displaced Palestinian civilians killed while taking refuge in Unrwa facilities.