"My request is that we get as quickly as possible the results of the inspection team, that we have an independent statement by an independent neutral institution," said German Foreign Minister Guido Westerwelle on arriving in the Lithuanian capital Vilnius for informal talks with his 27 European Union counterparts.
Europe stands sharply divided over US calls for military action against the Syrian regime in response to the deadly August 21 attack outside Damascus, with only France ready to take part, and Britain and Denmark in favour.
In Saint Petersburg, where he had attended the G20 summit, French President Francois Hollande vowed that France would wait for the UN report before launching any military action against Syrian President Bashar al-Assad.
"Are we going to wait for the inspectors' report? Yes, we are going to wait for the inspectors' report as we are going to wait for the US Congress vote" on the proposed strikes, he said after the summit.
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But some key world powers had doubts, he said.
"Therefore I think it is a good way to ask our colleagues in the United Nations to speed up with the exploration of the inspection team," he added.
France's Foreign Minister Laurent Fabius, whose country was left Europe's odd man out at the two-day talks due to its determination to join a US-led military intervention, told AFP that Paris was hoping for a unanimous condemnation of the chemical attack.