Valjakkala escaped from a low security prison at Hamina in Finland on Monday but was seized three days later at an apartment in Helsinki.
Now he is being detained under police guard in a psychiatric ward in the Finnish capital, according to Aftonbladet and the Finnish paper Ilta Sanomat.
Two hours after Valjakkala was arrested on Thursday he was found in his cell “in a bad condition”. He was taken to the emergency ward of Helsinki’s Maria hospital.
However, his injuries were not judged to be serious and Valjakkala was taken to a secure psychiatric ward.
The 41 year old triple murderer, who has changed his name to Nikita Joakim Fouganthine, escaped through a window at the open prison as his application for a pardon was being considered by President Tarja Halonen.