Earlier in the day, local media reported that the dead woman found on Saturday on a farm outside of Herrljunga in south central Sweden was most likely Johansen, who disappeared from Alingsås in mid-May.
Police in Västra Götaland confirmed that the man they were questioning for murder “in connection with Saturday’s discovery of a body” is Johansen’s 21-year-old ex-boyfriend and that he has confessed to killing the woman.
But the autopsy has not yet been completed and police have not yet confirmed that the body is in fact that of Johansen.
A detention order has been filed against the man who confessed to killing her, with a hearing scheduled for Wednesday at the latest.
The woman’s body was found not far from a gravel road on Saturday morning by a farmer who was preparing a field for sowing near Fölene church.
Johansen had been reported missing in May after leaving her home one night without taking her wallet, keys, or mobile phone.
A week later police launched a murder investigation. The boyfriend had been a suspect, but was released after questioning.
The body was found around 40 kilometres from Alingsås.