Finland–Sweden border border continues south into the northern Baltic Sea to a point where it meets the zone border of Estonia. The tripoint between the economic zones is defined by a treaty signed in 2001. The Finnish–Swedish border was created in 1809 by the Treaty of Fredrikshamn, as Sweden ceded Finland over to Russia. The course of the border was described in the fifth article of the treaty, without great detail. The borders were agreed to be the Sea of Åland, the Gulf of Bothnia, and the rivers Tornionjoki and Muonionjoki. Islands in the sea belonged to whichever country was the nearest
Finland–Russia border difference between the checkpoints (Eastern European Time and Moscow Time), one hour in winter. On 27 December 2015, Finland blocked access for people to cross over Russian border on bicycles via and Salla. According to the Finnish Border Guard, this measure was to limit illegal immigration and ensure safety on slippery roads. The Finnish Border Guard stated that organized traffickers had their clients cross the border by biking in order to avoid being captured on the Finnish side and prosecuted for organizing illegal immigration, which is a felony in Finnish law. In response, asylum seekers started to cross the border