* Envoy Brahimi holds talks with U.S. and Russian officials
* Agree that transitional governing body would have full powers
* Brahimi to brief Security Council later this month
GENEVA, Jan 11 International mediator Lakhdar Brahimi and envoys from Russia and the United States - backers of opposing sides in Syria's civil war - failed to make a breakthrough in talks on Friday seeking a political solution to the conflict.
"We stressed again that in our view there was no military solution to this conflict," Brahimi said in a joint statement read out after his closed-door talks in Geneva with U.S. Deputy Secretary of State William Burns and Russian Deputy Foreign Minister Mikhail Bogdanov.
They agreed on the need to reach a political solution based on an agreement reached by foreign powers in Geneva last June, which called for a transitional period in Syria. That left open the question of what role, if any, Syrian President Bashar al-Assad would have.
That appeared to be sticking on point at Friday's meeting.
"The devil is in the details," Brahimi told reporters.
"We said that this transitional government that will be in charge during the transitional period only, it is not a government that will stay for a long time, it will direct the transitional period that will end with the holding of the elections that will be agreed upon," he said in Arabic, adding that it would have "all powers of the state".
But asked by a reporter if there are had been any concrete progress, he said: "If you are asking whether there is a solution around the corner, I'm not sure that is the case."
The United States, European powers and Gulf-led Arab states insist Assad must step down to end a war that has killed 60,000 people in less than two years. Russia says this must not be a precondition to a settlement.
In Washington, U.S. State Department spokeswoman Victoria Nuland said there had been some progress toward a common view at the meeting but she did not provide any details on how the U.S. and Russian positions might have converged.
"We believe that we are making progress in concerting views on a way forward," she said, adding that there was more work to be done and that Brahimi was expected to talk to the Syrian opposition and government as a next step. She said Brahimi was also expected to brief the Security Council by the end of the month.
'MORE FOCUSED AND PRACTICAL' TALKS
One participant offered a somewhat upbeat assessment of Friday's talks. "This time it was more focused and practical," the participant told Reuters on condition of anonymity.
Syria denounced Brahimi as "flagrantly biased" on Thursday, casting doubt on how long the U.N.-Arab League mediator can pursue his peace mission.
Brahimi, speaking to Reuters in Cairo a day earlier, said Assad could have no place in a transitional government to end the civil war, the closest he has come to calling directly for the embattled president to quit.
Asked on Friday whether the Russians shared his views, he replied: "I am absolutely certain that the Russians are as preoccupied as I am, as preoccupied as the Americans are, by the bad situation that exists in Syria and its continuing deterioration.
"I am absolutely certain they would like to contribute to its solution," he added.
But pressed on whether Bogdanov had come with new proposals to pave the way for a political transition, he said: "We discussed a lot of things. They had ideas, others also had ideas."
Earlier, a U.S. official said the talks would focus on creating the conditions for a political solution, specifically the transitional body agreed on in June.
"The U.S. position is clear: Assad has lost all legitimacy and must step aside to enable a political solution and a democratic transition that meets the aspirations of the Syrian people," the U.S. official said, asking not to be named.
Before the meeting, Bogdanov gave no indication Russia would abandon its insistence that Assad must not be forced out by external powers.
Russia is "eagerly awaiting bringing the agreements reached in Geneva to life without damaging the sovereignty and territorial integrity of Syria and without violating the right of the Syrian people to choose their own leaders," Bogdanov was quoted as telling Russia Today television.