``There is a gap between what was understood by some countries, and what was understood by some other countries,'' said Agnes Pannier-Runacher. ``What is reflected in the agreement does not correspond to the common understanding of the document.''

On Saturday afternoon nations were poised for an agreement on a loss and damage fund. It is yet to be ratified.

Pannier-Runacher said countries had agreed to a fund ``particularly dedicated to vulnerable countries'' but that wasn't reflected in the current text.

Norway's climate and environment minister said people are ``frustrated'' by the lack of progress.

Espen Barth Eide said ``there were some good spirits'' earlier Saturday following a breakthrough on funding for vulnerable countries suffering from the impacts of climate change, known as loss and damage.

But progress stalled on mitigation, or a deal of slashing fossil fuels.

``Some of us are trying to say that we actually have to keep global warming under 1.5 degrees and that requires some action,'' he said.

``But there's a very strong fossil fuel lobby ... who are trying to block any language that we produce.''