Observers believe that the military operations and blocking humanitarian aid in northern Gaza is the prelude to Israel reoccupying the region and establishing Jewish settlements.

Israeli military strikes killed at least 50 Palestinians across the Gaza Strip as Israeli forces tightened their squeeze around Jabalia in the north of the enclave on Tuesday, amid fierce battles with Hamas-led fighters.

The Palestinian Civil Defence announced that 200,000 citizens in Jabalia camp have been without food, drink, or medicine for the 13th day as Israel continues its siege on northern Gaza amid heavy bombardment on the area.

At least 22 people have been killed and dozens wounded in an Israeli air strike on a UN-run school sheltering displaced families in northern Gaza, local medics and the Hamas-run Civil Defence agency say.

Thousands of people are trapped in Gaza's Jabalia camp as Israeli forces attack the area, Médecins Sans Frontières (Doctors Without Borders) said on Friday, a week after Israel launched an offensive there which it says is aimed at stopping Hamas regrouping.

Civilians fled heavy bombings in northern Gaza on Thursday as Israeli troops advanced on Jabalia refugee camp, leaving many trapped in the line of fire.

Standing in the ruins of his home, Nidal al-Arabeed took stock after more than 10 of his family members were killed by Israeli air strikes on the city of Jabalia,