Donor nations meeting in London have pledged more than $10bn to help Syrians affected by the five-year conflict, UK Prime Minister David Cameron announced.

He said the money (£6.8bn) would provide millions with "life-saving" food, medical care and shelter.

Refugees in neighbouring countries would also get greater access to education and jobs, he said.

The gathering has been overshadowed by the suspension of peace talks in Geneva and intense fighting on the ground.

A Syrian government offensive, backed by Russian air strikes, is continuing north of Aleppo.

Turkish Prime Minister Ahmet Davutoglu said an estimated 70,000 Syrians fleeing the bombing were moving towards Turkey.

'70,000 Syrian refugees head to Turkey'

In war-ravaged Damascus suburbs

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'Great success'
Mr Cameron said at the end of the day-long conference that $6bn had been pledged for 2016 alone, and a further $5bn over the coming years until 2020.

He said Turkey, Jordan and Lebanon - which have received many of the 4.6 million refugees - had pledged to ensure all refugee children will have access to education.

"The international union is backing them with the resources which will allow them to ensure there is no lost generation," he said, adding that one million children currently not in school would have access to education by the end of the next school year.

The neighbouring countries had also, he said, made a "courageous commitment" to open their economies to provide more jobs - helped with $40bn of loans and the opening of European markets that would create one million new jobs in the region.

UN Secretary General Ban Ki-moon hailed the gathering of 60 countries as a "great success".

"Never has the international community raised so much money on a single day for a single crisis," he said.