The Foreign Minister is standing by refusing to commit further funding for the UN's aid agency in Gaza.

A number of countries have hit pause after Israel alleged a dozen staff took part in the October 7 Hamas attack.

Prime Minister Chris Luxon says New Zealand won't contribute until Winston Peters has okayed it.

Peters says our next payment tranche isn't until the middle of the year.

"We've got time to consider this and plenty of time to come to a resolution- having heard what the United Nations investigation has to say."

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