Israeli air strike destroys 11-storey Gaza building

Gaza City - An Israeli air strike levelled an apartment building in the heart of Gaza City late on Saturday, wounding at least 18 people, four of them children, emergency services and witnesses said.

Residents in the 11-storey building were called 10 minutes before the attack and told to evacuate, after which at least two missiles slammed into the complex, levelling it totally, witnesses said.

An Israeli army spokesperson told AFP a Hamas military operations room had been located in the building.

Earlier on Saturday, the Israeli military sent text messages and voice mails and dropped leaflets warning Palestinians that "every house from which militant activity is carried out, will be targeted".

Israel said it had carried out 55 air strikes over the Gaza Strip on Saturday and that around 45 rockets and mortar rounds hit Israel, with another 10 intercepted as a six-week war with Hamas rumbles on.