A polio vaccination clinic in Gaza City was targeted with sound bombs from an Israeli quadcopter, Al Jazeera’s Hind Khoudary reports.

“We know that when the Israelis fire sound bombs or even live ammunition or bullets — there are a lot of fragments that fall after these attacks,” Khoudary reports, adding that at least three children were injured in this attack.

According to Khoudary, the polio campaign restarted despite challenges faced by the World Health Organisation, Unicef and the Palestinian Ministry of Health. “They were denied access, previously unable to cross from the southern Gaza Strip to Gaza City,” she says.

“But elsewhere in Gaza’s north, thousands of children will not get the polio vaccine because they are unreachable. Israeli forces are not letting Unicef, the World Health Organisation, and the Palestinian Ministry of Health reach those areas,” she adds.

Khoudary says that there is a siege in that area. “We’re talking about more than three weeks now of no food, no water, no medicine, no aid.”