The United Nations has warned that its refugee camps in Gaza are “overflowing” and admitted that it is struggling to cope with the numbers.

Chris Gunness, spokesman for the United Nations Relief and Works Agency (UNRWA), said the aid effort is at breaking point as around 245,000 Palestinians have fled to 80 of its schools.

Mr Gunness told Sky News: “Eight of my colleagues have been killed. We simply can’t cope.

“The Israeli army has been dropping leaflets over Gaza telling people to leave their homes.

“We may well soon be in a position where there are tens of thousands stranded in the streets of Gaza with missiles flying in, rockets flying out.

“The parties to this conflict need to realise that UNRWA does not