Israeli military says its troops have completed encirclement of Gaza City - BBC News
It comes as the UN said four schools-turned-shelters in Gaza had been damaged in the last 24 hours.
We've just heard from our correspondent Anthony Zurcher in Ireland, where the US secretary of state's plane is refuelling on the way to Israel.

His arrival come just hours after the country's president, Michael D Higgins, made a vocal intervention warning against the "collective punishment" of people living in Gaza.

Higgins called on the European Union and the broader international community to put an end to the conflict, saying they have a responsibility of upholding and vindicating international law.

"The ongoing horrific loss of civilian life in Gaza and Israel has to be addressed," Higgins said in a statement. "When it comes to the protection of children, no other issues should stand in the way for even a minute."

His statement criticised the targeting of hospitals in particular, saying it is "simply unacceptable that hospitals and those being cared for within them are threatened by the basic lack of resources, damaged or indeed threatened with destruction".

He concluded that if the world is to move past this conflict, a consistent, diverse body of proposals on the region's future should be put forward.

The proposals, he says, are "ones that can deliver a reasonable security to citizens of Israel, and at the same time achieve the delivery of the long-neglected rights of the Palestinian people".