The man was shot in Tynnered on the outskirts of the western Swedish city and rushed to Sahlgrenska hospital, where he died around 10pm.
“We still don’t know much about the crime,” said Åsa Andersson of the Västergötlands police to the Expressen newspaper.
“The man is still unidentified, the crime scene is cordoned off, we’re interrogating witnesses and forensic analysts are searching the area.”
The man was gunned down by an unknown assailant and found by police near Frölunda square.
“A large number of witnesses contacted us – the street goes through an area with apartment buildings,” Andersson told the TT news agency.
Meanwhile, residents who live nearby were shocked by the incident, with some fearing for their own safety.
“It’s horrible! I want to move from here but no one wants to switch with me,” said local resident Anna Bernsson to the paper.
“You hear a lot about weapons, trafficking and narcotics. I don’t want to go out late but I have to walk the dog.”
Police are still unaware of how many shots were fired and of the motive behind the crime, and are yet to take in any suspects for interrogation.