International public opinion is turning against Israel bombing Gaza.

153 members of the UN General Assembly, including New Zealand, voted today to call for an immediate ceasefire in Gaza.

Former UN Development Programme head and former Prime Minister, Helen Clark, says even the US President - a staunch advocate - has acknowledged Israel is losing support.

She says the situation in Gaza is dire and getting worse.

"Two-thirds of people have no home, 80 percent of them have been displaced. People are given a choice between flee or die."

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