According to Finland's south-eastern Border Guard, there was a serious accident on the road between Vyborg and Nuijamaa at around 8:30 AM on Saturday.
The RIA Novosti news agency reported a collision between a van and a timber transport vehicle left at least 10 dead and three injured. All were Russian citizens.
Traffic from Finland into Russia at Nuijamaa has been temporarily suspended and the Border Guard is advising motorists headed to Russia to use the border-crossing points at either Imatra or Vaalimaa.