A police statement early on Thursday revised the number of injured in the attack to seven from eight, and police later said they were no longer investigating possible terror motives.
The suspect, who is in his twenties, was taken to hospital after being shot in the leg by police following the mid-afternoon attack on Wednesday in the southern city of 13,000 inhabitants.
Speaking to AFP, police said the man had used a “sharp weapon”, while local media reported that he had brandished a knife.
Police initially treated the incident as “attempted murder” but later changed it in a statement to include a “suspected terrorist crime”, without giving further details. Now the man has been detained on suspicion of several accounts of attempted murder, but police are no longer investigating the incident as suspected terrorism.
Three of those attacked were said to have suffered life-threatening injuries, while two others were in serious condition. All five required intensive care treatment, according to information coming out of the hospital in Jönköping where they were being treated.
The victims were aged between 20 and 70, according to local newspaper Jnytt.
The Swedish intelligence service Säpo will still be involved in the investigation, but have not taken over the case, as happens with suspected terrorism crimes.
The suspect was a 22-year-old resident of the area and previously known to police, but in the past had only been suspected of “petty crimes”. Police did not specify if he was a Swedish citizen.
“We are working intensively and will have lots of resources going forward. We would also really like to come into contact with anyone who has information on the incident. That is also one reason why we cannot come out with a lot of details at the moment,” local police chief Malena Grann told The Local on Wednesday evening about the next step in the investigation.
As of Thursday morning, police said they had been able to carry out an initial questioning with the man overnight, after he received treatment for his injuries at hospital.
Swedish Prime Minister Stefan Löfven condemned the “horrific violence” in a statement published on his Facebook page.
“We face these despicable actions with the combined force of the community,” Löfven said.
“We are reminded of how frail our safe existence is,” Löfven added, encouraging people to have the victims in their thoughts, as well as health workers and police tending to wounded and working to restore peace.
Here's Swedish Prime Minister Stefan Löfven's full statement about the attack in Vetlanda. This is not an ongoing attack – the suspect has been apprehended. Police are investigating possible terror motives, but have released few details so far. https://t.co/x9f6i4tZsj
— Emma Löfgren (@ekjlofgren) March 3, 2021
According to the police report, the first emergency calls about the attack came in shortly before 3pm on Wednesday, with the first patrol arriving on the scene at 3.10pm. Police said that the suspect was located three minutes after the first patrol arrived, and that the armed man was shot and arrested.
Police have scheduled a press conference for 3pm on Thursday.