Organisers of the climate talks in Paris say a final draft text has been agreed after nearly two weeks of intensive negotiations.
SIA reports citing the AFP news agency that the draft will be presented to ministers at 10:30 GMT.
No details of the proposed agreement have been released so far.
The tentative deal was reached nearly 16 hours after the talks had been scheduled to close.
"We have a text to present," the official said, adding that the draft would be now translated into the UN's six official languages.