Thousands of Syrian refugees poured into northern Iraq, taking advantage of a new bridge along the largely closed border, with most being women, children and elderly people from areas of heavy fighting, including Aleppo and Hassakeh.
Some Syrian refugees had been allowed in since mid-July for reasons of family reunification or dire humanitarian need, the UN added.
More top news
The number of children in care has increased to its highest level for nearly 25 years, the Government's spending watchdog has said.
Abuse victims are being put through "torture" by the pace at which the Government's inquiry into abuse is progressing, an MP has said.
The number of diabetic and severely overweight patients having weight loss surgery needs to triple to help the future of the NHS, Nice said.