BRUSSELS: European Union leaders condemned Russia on Friday for its bombing of civilians in Syria's besieged city of Aleppo but faced resistance from Italy to impose new sanctions against Moscow over the atrocities.

Horrified by Russian air strikes on hospitals and an aid convoy that have killed hundreds of civilians including children, Britain, France and Germany want maximum pressure on Moscow to stop its assault on rebels in eastern Aleppo.

Italian Prime Minister Matteo Renzi, whose country has broad trade ties with Russia, said economic sanctions should not be part of that strategy because they would not force Moscow to negotiate a peace settlement.

"We should do everything possible for a peace deal in Syria but it's difficult to imagine that this should be linked to further sanctions on Russia," Renzi told reporters after a late-night dinner in Brussels where the bloc discussed strategy.

With no military role in the Syrian civil war, the European Union is relying on its neutral status to help the United Nations to end the near 5-1/2-year Syrian conflict, anxious to be seen to be active.

France has sought to isolate Russia diplomatically, first at the United Nations Security Council in New York with a failed bid to force a ceasefire and then with a formal condemnation by all 28 EU foreign ministers this week of Russia's strikes in rebel-held eastern Aleppo.

European leaders followed up with equally strong language in their summit statement in the early hours of Friday. But the final version removed wording seen by Reuters in earlier drafts threatening sanctions on Russian individuals and companies linked to Syrian President Bashar al-Assad.

"ALL OPTIONS"

Russia's intervention in the Syria conflict a year ago has turned the tide of the war in Assad's favor. The recapture of Aleppo, Syria's biggest city before the war, is now Moscow's goal, seemingly at any cost, diplomats said.

French President Francois Hollande, who held late-night talks on Wednesday in Berlin with Russian leader Vladimir Putin and German Chancellor Angela Merkel, insisted that sanctions had not been completely ruled out.

"All the options are open as long as the truce is not respected and as long as there is a will to crush a city," Hollande said of Aleppo, where some 275,000 people are trapped and hundreds of people have been killed since a ceasefire agreed by Moscow and Washington broke down.

Russia has told the United Nations it will stop bombing eastern Aleppo for 11 hours a day for four days, an announcement that EU officials speculated was timed to coincide with the EU summit in Brussels and as momentum was building to impose more crippling sanctions on the Kremlin.

As the EU leaders discussed their options over dinner, a fleet of Russian warships carrying fighter bombers made its way along Europe's western coast towards Syria. It is a naval operation that NATO believes is likely to intensify the assault on Aleppo, despite the Russian ceasefire pledge.

NATO Secretary-General Jens Stoltenberg said he was seriously concerned about the fleet, saying: "This may be used to increase attacks on Aleppo ... to increase human suffering," Stoltenberg told reporters.

Merkel who earlier denounced the air strikes on Aleppo as "completely inhuman" said that she would do all she could to extend the ceasefire. She also said sanctions were still an option. "If the intensity of the bombing that we've seen in recent days continues, then that would be a reason for us to think about what we do next," she told Reuters.

UKRAINE TROUBLES

Russia, with a weak rouble and an economy in recession, is feeling the impact of European Union and U.S. sanctions on the country's financial, energy and defense sectors imposed over Moscow's annexation of Crimea in 2014 and its support for separatists in Ukraine.

More sanctions on Russia would be unlikely to have much of an economic hit but could further worsen ties with Moscow.

Highlighting those tensions, European Council President Donald Tusk, who chaired the summit, accused Russia of trying to weaken the European Union, saying leaders were worried about Russian hostilities ranging from airspace violations to disinformation campaigns and cyber attacks.

"Given these examples, it is clear that Russia's strategy is to weaken the EU," he said.

Adding to the EU's problems in the region, Dutch Prime Minister Mark Rutte told leaders at the end of the dinner that he was not optimistic of reaching a deal over a partnership agreement between the European Union and Ukraine, which was rejected by Dutch voters in a referendum in April.

Western efforts to pull the former Soviet nation out of Moscow's grasp with the free-trade deal have been complicated by the Dutch vote.

"On the one hand a Dutch 'no' could potentially have an effect on the region, on the other hand I do not want the Dutch voter to feel cheated," Rutte told a press briefing in Brussels.

Rutte added he would continue to negotiate behind the scenes to get an agreement in the Dutch parliament, as well as with Ukrainian and European leaders.