Amid approaching winter, several regional aid groups are trying to help about 400,000 internally displaced Syrians living in tents, barns and other ill-equipped temporary shelters in Idlib province. International aid groups are also complaining of a resource crunch. Al Jazeera's Sue Turton reports from Jabal Zawiya in Idlib. International aid groups are suffering a funding gap which threatens response. Al Jazeera's Sue Turton reports from Jabal Zawiya in Idlib province, Syria.