BERLIN (Reuters) – The city of Berlin has warned Ukrainian refugees not to accept offers of money or accommodation at the main train station due to concerns that they might be lured into forced prostitution or other forms of human trafficking. “Please note that there may be criminals on the move at Berlin central station who want to profit from the situation of war refugees,” the Berlin government said on the website it has set up for refugees from Ukraine. Police signs in German, Ukrainian and Russian are displayed at the station, warning women and young people travelling alone to not accept …