Police in eastern Finland suspect a 20-year-old man killed another man with a knife in a house on Raviradantie road in Mikkeli on Wednesday.
A third person was allegedly present in the house when the crime took place, according to police. The witness was questioned and is not suspected of a crime.
Police say that both the suspect and the victim came to Finland from abroad to study.
An initial investigation into the death is mostly complete, but a motive for the killing remains unknown.
The suspect's remand hearing is scheduled to be held at Eastern Savo District Court on Friday.