A man in his 30s has been found dead in a residence in Mölndal after an alarm about cardiac arrest, according to the police.
A preliminary investigation into murder has been initiated.
I can only say that there are circumstances that make it impossible to rule out a crime, says Fredrik Svedemyr, press spokesperson for the police in Region Väst.
A man in his 30s who was at the address when the police arrived has been arrested. It is unclear if they have a relationship with each other.
The residence has been cordoned off for a technical investigation and the police will be knocking on doors in the area.
