Police are investigating a drone discovered on the ground in Iitti, some 140 kilometres northeast of Helsinki, on Saturday afternoon.
They said it is a similar aircraft to those previously found in southeastern Finland, which are all suspected to be Ukrainian.
Officials are investigating whether the incident is linked to earlier cases in which drones were found in Kouvola, Luumäki and Parikkala at the end of March.
A Ukrainian spokesperson previously said the drones ending up in Finnish territory were likely caused by electronic signal interference from Russia.
