The alleged crime relates to the Olkiluoto nuclear power plant on Finland's west coast, Yle understands, but Finnish authorities are unsure of the suspect's whereabouts.The suspected crime relates to the Olkiluoto nuclear power plant, located in Eurajoki on Finland's west coast. File photo. Image: Arash Matin / YleYle News10:22Helsinki District Court has remanded in absentia a man suspected of disclosing a security secret, which is treated in Finnish law as a treasonous offence.According to Yle's information, the suspect in question is a man in his 50s of Indonesian origin.Yle also understands that the alleged crime took place in August 2021 in Eurajoki in the Satakunta region, and it is related to the Olkiluoto nuclear power plant, which is located there.The remand order was requested by Finland's National Bureau of Investigation (NBI).NBI Detective Superintendent Juha-Pekka Karkkola declined to comment on Yle's information — aside from confirming that the suspect is an Indonesian citizen.He added that the whereabouts of the suspect is not currently known to Finnish authorities, and he did not wish to speculate on whether the suspect would be apprehended and face a criminal trial.The case is being investigated by Finland's National Bureau of Investigation (NBI). File photo of the bureau's headquarters. Image: Antti Kolppo / YleDisclosing security secrets a serious offenceDisclosure of a security secret is classified as a treasonous offence under Finnish law, and a conviction can lead to a prison sentence of between four months and four years.A person can be found guilty of the offence if they unlawfully acquire, disclose, transmit, hand over or reveal information that must be kept secret for the sake of Finland's national security.The information must therefore be of such a nature that its disclosure is likely to cause serious harm to Finland's national defence, security, foreign relations or national economy.There have been several cases in Finland in recent years in which the disclosure of security secrets was suspected.A military lawyer working for the Finnish Defence Forces (FDF) was charged earlier this month with revealing a national secret as well as a breach of duty offence.Almost exactly one year ago, the Helsinki Court of Appeal convicted two Helsingin Sanomat journalists of revealing a national security secret in an article they co-wrote.