A wounded Palestinian man is brought into al-Shifa hospital on August 9, 2018, following an Israeli air strike on Gaza City. - At least 18 Palestinians were wounded as Israel struck a building in central Gaza City

A wounded Palestinian man is brought into al-Shifa hospital on August 9, 2018, following an Israeli air strike on Gaza City. - At least 18 Palestinians were wounded as Israel struck a building in central Gaza City

Palestinians stand on the remains of a building after it was bombed by an Israeli aircraft, in Gaza City August 9, 2018

A missile lands as an Israeli aircraft bombs a building in Gaza City August 9, 2018.

Palestinians inspect the damaged building of Said al-Mis'hal cultural center after it was hit bombed by an Israeli airstrike in Gaza City, Thursday, Aug. 9, 2018.

Smoke rises after an Israeli aircraft bombed a multi-storey building in Gaza City August 9, 2018.

Palestinian workers salvage items from the rubble of a municipal water distribution center that was damaged by an Israeli airstrike, in Mughraqa, central Gaza Strip, Thursday, Aug. 9, 2018.

Palestinians inspect the damaged building of Said al-Mis'hal cultural center after it was hit bombed by an Israeli airstrike in Gaza City, Thursday, Aug. 9, 2018.

Palestinians gather around a building after it was bombed by an Israeli aircraft, in Gaza City August 9, 2018.

Iron Dome anti-missile system fires an interceptor missile as rockets are launched from Gaza towards Israel near the southern city of Sderot, Israel August 9,

Smoke rises from an explosion caused by an Israeli airstrike on a building of Said al-Mis'hal cultural center in Gaza City, Thursday, Aug. 9, 2018.

A picture taken on August 9, 2018 shows a boy looking at the rubble of a building following an Israeli air strike on Gaza City. - At least 18 Palestinians were wounded as Israel struck a building in central Gaza City

A picture taken on August 9, 2018 shows people inspecting the rubble of a building following an Israeli air strike on Gaza City. - At least 18 Palestinians were wounded as Israel struck a building in central Gaza City

A wounded Palestinian girl is brought into al-Shifa hospital on August 9, 2018,