More than a dozen Palestinians killed as all of Gaza has been under relentless Israeli strikes since the early hours of this morning, particularly in the north.

At least 61 people have been killed by Israeli attacks on Gaza in the last two days as Israel’s war on the besieged enclave enters its 12 month with little sign of respite for the Palestinian territory.

Israeli air raids killed more than a dozen people overnight into Saturday, hospital and local authorities said, as health workers wrapped up the second phase of an urgent polio vaccination campaign designed to prevent a large-scale outbreak.

Sources told A Jazeera that three women and two children were killed in the east of the Nuseirat refugee camp in central Gaza as a result of Israeli shelling.

Separately, Gaza’s Civil Defence agency said an Israeli air attack targeting a school-turned-shelter for displaced Palestinians killed at least three people. The Civil Defence also said 20 people were wounded in the attack that targeted the Amr Ibn al-Aas School in the Abu Iskandar area of the Sheikh Radwan neighborhood, north of Gaza City.

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