Finding a safe area in war-torn Gaza is becoming harder now that 44 per cent of the territory has been declared a no-go area by the Israeli army.

The Gaza Strip is just 45 kilometres long and 6 kilometres wide.

Ms Valerie Amos, the UN humanitarian chief confirmed during a briefing to the Security Council that over 440,000 Gazans are now displaced.

Jocelyne Sambira has more.

Duration: 2'25"