“The person who passed away in the parliament building on the morning of Aug 19 is Eemeli Peltonen, a member of parliament in his first term,” the statement said, expressing condolences to his relatives.

Peltonen died around 11am local time, Finnish police said.

The police said it “was investigating the causes of death, but do not suspect crime at this stage”.

Chair of the social democratic parliamentary group, Tytti Tuppurainen, said the “passing of Eemeli Peltonen deeply shocks me and all of us” in a statement.

“He was a much-loved member of our community and we will miss him deeply,” she said.

“A young life has ended far too soon. We share in the grief of his loved ones and wish them strength in their mourning.”

Finnish President Alexander Stubb, alongside many MP, described the news as deeply shocking and tragic.

“Today we received tragic news from parliament. My warmest condolences go out to Eemeli Peltonen’s loved ones, and I wish them strength in their time of mourning,” Stubb wrote on X.

The Finnish flag could be seen flown at half-mast today outside parliament.

Finnish MPS are on summer recess, with the autumn sittings set to begin on Sept 2.