United States Secretary of State John Kerry has met with Russian Foreign Minister Sergey Lavrov in Rome in a renewed bid to ease the fighting in the besieged Syrian city of Aleppo. Pope Francis also attended the meeting.

"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," said Kerry.

"The time is ripe for compromise," said Lavrov.

The United States has accused Russia of war crimes and crimes against humanity in the ongoing civil war in Syria, which has lasted since 2011. Russia blamed the US and UN for the current situation in Syria.

Risking a 'giant graveyard'

The UN warned eastern Aleppo could become a "giant graveyard" if the violence continues. Previous international efforts for a truce have broken down.

Russia, which supports Syrian President Bashar al-Assad, has been in talks with opposing forces to ease the tough conditions in Aleppo. An opposition official claimed Friday that Russia was procrastinating.

Russia has proposed setting up humanitarian corridors for aid to reach eastern Aleppo. "We have informed the UN in New York and Geneva that there is no longer a problem with the delivery of humanitarian cargo to eastern Aleppo," Lavrov noted.

Kerry said he will check the progress of peace talks with Lavrov when the two meet again on the sidelines of a European security conference in Hamburg, Germany, on Wednesday.

More than 300,000 have been killed in the civil war, and millions have been displaced since the conflict began.

kbd/gsw (AFP, AP, Reuters)