The Cop29 climate conference is on the verge of collapse, with delegates scrambling to agree an 11th-hour deal after officials from poorer nations walked out in a row over funding.

The two-week long conference in Baku, the Azerbaijan capital, has been dogged by problems verging on farce – and now risks concluding without any deal in place.

The focus of the conference was supposed to be the agreement of a new financing deal for poor countries, known as the new collective quantified goal (NCQG).

The money, transferred from rich carbon-emitting nations, is intended to help deal with the effects of climate change.

Poorer nations, however, say that not enough has been offered, with two delegate groups walking out of the finance meeting on Saturday in anger at the lack of progress.

Meanwhile, a delegate from oil-rich Saudi Arabia was accused of tampering with the official negotiating text.