Deutsche Bahn in exclusive talks with Carlyle for Arriva sale

BERLIN (Reuters) - Deutsche Bahn is in exclusive talks with U.S. buyout group Carlyle over the sale of the German rail operator's Arriva international passenger transport unit, a person familiar with the matter said on Friday.The German rail operator is also still preparing for a potential flotation of Arriva, the person said.Arriva, which employs 53,000 people across Europe and is expected to be valued at 3-4 billion euros ($3.35-$4.5 billion), runs British rail franchises including Northern..