Turkish Prime Minister Ahmet Davutoglu described the Bashar al Assad regime and DAESH as enemies of humanity on Thursday, speaking at a fundraising conference in London.
“There are two enemies of humanity today: the Assad regime and DAESH terrorism, and we should stand shoulder to shoulder against those who are committing war crime,” Davutoglu said.
Tens of thousands of Syrians are moving towards the Turkish border from the Syrian city of Aleppo due to increased aerial bombardment, Davutoglu added.
"Ten thousand new refugees are waiting in front of the door of Kilis because of air bombardments and attacks against Aleppo," he said, citing new information he received on his way to London.
"Sixty to seventy thousand people in the camps in north Aleppo are moving towards Turkey. My mind is not now in London, but in our border - how to relocate these new people coming from Syria?" he added.
"Three hundred thousand people living in Aleppo are ready to move towards Turkey," he said.
The prime minister reiterated that Turkey has spent a record of $10 billion of its own resources on refugees staying in camps in the country.
The Syrian civil war has claimed more than 260,000 lives and turned the country into the world's largest source of refugees and displaced persons.
Syrian refugees escaping the violence in their country fled Syria in large numbers following the escalation of the Syrian Civil War in 2012.
One of their most preferred destinations was neighbouring Turkey, which hosts more than 2.5 million Syrian refugees, the most in the world according to the registration records of the United Nations.
Leaders and diplomats from 70 countries met in London on Thursday to pledge billions to help millions of Syrians displaced by war and try to slow the chaotic exodus of refugees to Europe.
The one-day meeting, held under tight security near the British Parliament, was aimed at gathering donations and agreeing on plans for economic and educational projects to help the 4.6 million Syrians who have sought refuge in neighboring countries including Jordan, Lebanon and Turkey.
The meeting opened hours after the latest UN-led bid to start peace talks in Geneva was suspended for three weeks - a sign of major difficulties. The faltering peace process increases pressure on donor countries to commit long-term aid to the victims of a five-year civil war that has no quick end in sight.
The UN and regional countries say they need $9 billion in assistance for 2016 alone, as the situation in the region deteriorates.
Conference co-host Britain has pledged 1.2 billion pounds ($1.75 billion) in new aid between now and 2020 and Secretary of State John Kerry is due to announce the US commitment later.
Previous aid conferences for Syria have failed to meet their targets. Last year's, in Kuwait, raised just half its $7 billion target, forcing cuts to programs such as refugee food aid.
But this year's organisers, which include Britain, Germany and the UN, hope that finding jobs and schools for refugees can foster stability and keep displaced Syrians in the Middle East, slowing the chaotic migration of refugees to Europe.
British Prime Minister David Cameron said that "using fundraising to build stability, create jobs and provide education can have a transformational effect in the region, and create a future model for humanitarian relief."
"And we can provide the sense of hope needed to stop people thinking they have no option but to risk their lives on a dangerous journey to Europe," he said.
The conference also discussed plans to create economic incentives for countries that are dealing with the strain of housing millions of newcomers.
At the conference politicians, diplomats and aid groups also tried to find ways to get more humanitarian aid to suffering civilians inside Syria.
UN Secretary-General Ban Ki-moon told an audience at Cambridge University on Wednesday that the UN has been able to deliver aid to "much less than 5 percent" of the 400,000 Syrians living in besieged villages, many of them in areas controlled by DAESH.
Neither the Syrian regime nor rebel groups attended the conference. But Ban had said that one of the meeting's goals was "influencing the parties and regional powers" to find a political solution to Syria's five-year civil war.
"That's the only way. There is no military solution," he told the BBC.