ISREALI OCCUPIED GAZA - The war in Gaza has devastated the Palestinian economy, which is now 35% smaller than it was at the start of Israel's invasion a year ago, the United Nations' development agency said on Tuesday.

UNDP said quality of life indicators such as health and education had been knocked back 70 years to the 1950s.

In northern Gaza, residents said Israeli forces had besieged hospitals, schools, and other shelters housing displaced families and ordered them to leave and head south. They said forces detained dozens of men.

Footage obtained by Reuters showed dozens of residents fleeing their area, carrying some of their belongings.

Hussam Abu Safiya, the director of the Kamal Adwan Hospital, said medical services had completely collapsed.

"There are no blood units or tubes to drain bleeding from the chest. Most of the medical supplies are not available," he said in a statement.

"People around the hospital are being asked to evacuate, and those who evacuated were shot on the way...the situation is more than catastrophic."

The death toll in more than a year of war in Gaza is approaching 43,000, according to the latest health ministry figures, and most of the 2.3 million population is displaced, many in makeshift shelters.

The Israeli offensive was triggered by the Hamas-led attack on Israel on Oct. 7, 2023, killing some 1,200 people and taking around 250 hostages into Gaza.