EU threatens Russia with sanctions over Syria

All options open, including sanctions, says Donald Tusk, EU President

European Union leaders warned Russia at a summit on Thursday that they will consider sanctions over its role in the Syrian conflict if Moscow does not stop "crimes" in the devastated city of Aleppo.

As the bloc's 28 leaders met in Brussels for a crucial discussion on their future strategy to deal with Moscow, EU President Donald Tusk said they should "keep all options open, including sanctions."

French President Francois Hollande said that "all options are open for as long as there is not a ceasefire that is respected and for as long as there is an intention to destroy this town, Aleppo, a town of martyrs."

The leaders in a draft summit statement said the EU was weighing sanctions against supporters of Syrian President Bashar al-Assad's regime if they fail to stop atrocities.

"The EU is considering all options, including further restrictive measures targeting individuals and entities supporting the regime, should the current atrocities continue," the draft EU summit statement said.

"The European Council strongly condemns the attacks by the Syrian regime and its allies, notably Russia, on civilians in Aleppo," it added.

British Prime Minister Theresa May, arriving for her first EU summit since the June Brexit vote, called for a united European approach to "sickening atrocities" in Syria,

"We must show a robust and united European stance in the face of Russian aggression," May told reporters. "It is vital that we work together to continue to put pressure on Russia to stop its appalling atrocities, its sickening atrocities in Syria."

The EU leaders were to discuss their long-term Russia policy over dinner but deep cracks over how tough to be with Moscow remained evident.

Some warned there was no unity on adding sanctions over Syria to those that the EU has already imposed on Russia over the conflict in Ukraine.

"One option is sanctions. I don't think there's unity but I think it should be on the table, that this should be an option for the future," Swedish Prime Minister Stefan Lofven told reporters.

Luxembourg premier Xavier Bettel meanwhile said that "certain people were talking about sanctions" but "we have to find solutions around the table."

Russia had upstaged the summit by announcing earlier in the week that it would halt hostilities over Aleppo today just as the 28 leaders were gathering in Brussels.

It said on Thursday it would extend the truce by 24 hours, without specifying when it would end. The UN had said earlier it had received a pledge from Moscow to extend it until Saturday.