Three patients infected with the deadly Ebola virus slipped out of an isolation ward at a hospital in the Congolese city of Mbandaka, an aid group said, as medics raced to stop the disease spreading in the busy river port.

John Carpenter’s film Escape From New York made quite an impact when it was released in 1981. The movie takes place in a dark future where Manhattan Island had been transformed into a massive, maximum-security open-air prison surrounded by 15-m high walls.

More than 4,000 fighters left rebel-held areas of Aleppo, the Red Cross said on Thursday, in the "last stages" of an evacuation clearing the way for Syria's army to retake the city.