By Natalia Zinets and Max Hunder (Reuters) – Russian artillery fire killed at least four people and wounded four others at a humanitarian aid distribution point on Wednesday as Moscow’s forces bombarded towns, cities and rail infrastructure in eastern Ukraine, local officials said. Authorities in the eastern region of Luhansk urged civilians to evacuate “while it is safe”, warning that Russian bombardments could cut off escape routes. Later, Ukrainian Railways reported there were a number of casualties after three rockets hit an unspecified rail station in the east, without giving further deta…