Oy Karelian Trains Ltd was a joint venture agreed on 23 November 2006 between Russian Railways (RZhD) and VR Group (Finnish Railways) to facilitate the operation of international express passenger rail services between Helsinki, Finland, and Saint Petersburg, Russia. Karelian Trains was registered in Helsinki; VR and RZhD both owned 50% of the shares.[1] The services are branded as Allegro.[2]