Rail Baltica is an under-construction rail infrastructure project that is intended to integrate the Baltic states in the European rail network. Its purpose is to provide passenger and freight service between participating countries and improve rail connections between Central and Northern Europe, specifically the area southeast of the Baltic Sea. It is also intended as a catalyst for building the economic corridor in Northeastern Europe. The project envisages a continuous rail link with stations from Tallinn (Estonia) to Warsaw (Poland), via Riga (Latvia) and Kaunas (Lithuania), with two branches extending from the main line towards Riga International Airport and Vilnius (Lithuania). Its total length in the Baltic States is 870 kilometres (540 mi), with 213 kilometres (132 mi) in Estonia, 265 kilometres (165 mi) in Latvia, and 392 kilometres (244 mi) in Lithuania. Rail Baltica is one of the priority projects of the European Union (EU). It is part of the North Sea–Baltic Corridor of the Trans-European Transport Networks (TEN-T).