BAKU, Nov 23 (Reuters) - Country delegates at COP29 met for a plenary Saturday night to agree on some aspects of this year's negotiations, while their teams continued to work on the summit's centerpiece topic: agreeing a new target for annual climate finance.

Countries agreed on a deal to inject at least $300 billion annually in humanity's fight against climate change, aimed at helping poor nations cope with the ravages of global warming at tense United Nations climate talks in the city where industry first tapped oil.

Richer countries have pledged to give a record $300bn (£238bn) to the developing world to help them prepare for and prevent climate change. The talks at the UN climate summit COP29 in Azerbaijan ran 33 hours late, and came within inches of collapse.