Březno () is a municipality and village in Chomutov District in the Ústí nad Labem Region of the Czech Republic. It has about 1,400 inhabitants. Administrative parts Villages of Denětice, Holetice, Kopeček, Nechranice, Stranná, Střezov snd Vičice are administrative parts of Březno. Transport The municipality is located on a railway line leading from Lužná to Chomutov and Žatec. There is a train station which is served by regional trains. The Březno railway tunnel was built on a reallocated train track in 2007. The tunnel is long and it was the longest railway tunnel in the Czech Republic until 2018. References Villages in Chomutov District Villages in the Ore Mountains