'We condemn the pressure from OPEC and international oil companies to not have a decision on a phase-out of fossil fuels', said Ghiwa Nakat, Executive Director for Greenpeace MENA.

The UN climate summit in Dubai made progress Saturday but deep divides persisted, negotiators said, following a last-minute push by the OPEC oil cartel to block a phase-out of fossil fuels.

-Progress but divisions persist as climate summit fights over fossil fuels-

OPEC drew outrage from green-minded countries and activists when it joined Saudi Arabia and called on members to block an emerging declaration that would seek to wind down extraction of the oil, coal and gas that are fuelling the climate emergency.

But both the president of the COP28 summit, Sultan Al Jaber, and top oil importer China said they saw headway as talks go into a marathon phase before the scheduled close on Tuesday.

"The window is closing to close the gaps. We are making progress, but not fast enough and not satisfying enough," Jaber said.

"Now is the time to put aside self-interest for the common interest," Jaber told delegates in a Saturday night session, without publicly endorsing any option.

Jaber said he hopes to submit a package for review by Monday morning.