The United States and Russia are studying new ways to break a months-long diplomatic deadlock over how to stop the fighting in the Syrian city of Aleppo, US Secretary of State John Kerry says.
He said on Friday the "ideas" will be tested in follow-up discussions between American and Russian diplomats next week.
Kerry would only describe those fresh approaches as designed to lead to talks between Syria's government and rebels, while stressing that the US and Russia won't wait for Donald Trump's presidency to begin on January 20.
But given the repeated failures of the former Cold War foes to halt Syria's 5 1/2-year civil war, it is unclear how much hope the new effort holds.
"We have exchanged a set of ideas, which there will be a meeting on early next week in Geneva, and we have to wait and see whether those ideas have any legs to them," Kerry said after meeting Russian Foreign Minister Sergey Lavrov in Rome.
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"I will say that both sides understand the importance of trying to continue the diplomacy and trying to see if something can be done. Nobody is waiting for the next administration. We both feel there is urgency."
Kerry said he will gauge progress with Lavrov when they meet again on the sidelines of a European security conference in Hamburg, Germany, on Wednesday.
"Nobody is resigned to the violence," the American said at a news conference later in the day.
While the talks were going on, Syria showed off its recent gains in Aleppo, once the country's largest city and commercial centre.
State media reported on Friday from areas captured this week in a Russian-backed ground offensive, airing reports of roads being restored, debris removed and civilians resettled.
It takes Syrian President Bashar Assad's government closer to capturing the whole city and completing what would be perhaps a devastating blow to US-backed rebel forces.
While Washington has accused Moscow of war crimes and crimes against humanity in Syria, Lavrov blamed both the US and United Nations for the current situation.
He lamented that the US has been unable to fulfil its commitment under several past ceasefire plans to separate the so-called "moderate" opposition groups from the al-Qaeda-linked fighters that Russia says it is targeting.
And he questioned why the UN isn't restarting peace talks or rushing aid to areas of Syria in need, something the global body has been extremely reticent to do since a September convoy was hit by an airstrike. The US has blamed Russia for that attack, a charge Moscow denies.
"The time is ripe for compromise," Lavrov said.
Both diplomats met on Friday with the UN's envoy for Syria, Staffan de Mistura.
As de Mistura began his meeting with Kerry, reporters could hear the peace mediator telling the US secretary of state, "Anything but stalemate."
