A heartbroken family have paid tribute to a "perfect" three-year-old girl and her unborn baby brother who died after an eight-vehicle pile-up on a dual carriageway

One person has been killed in a dramatic motorway chase and shoot-out that involved three crashes and a pile-up on the Belgian-French border.

At least 14 vehicles have been involved in a major pile-up on one of the country's busiest road junctions.