During a press conference on Friday, Kronoberg County police spokesperson Robert Loeffel said investigators had already conducted 170 interviews in the five-day old murder investigation and that more than 30 tips had come in.
“That’s not many tips for such a serious crime,” he said, appealing to the public for more information about what happened.
“It’s critically important for us in our investigation.”
The 4-year-old boy was last seen around 5pm on Sunday from a playground near his home while playing with other children.
He was reported missing around 7.30pm and police launched an intensive search for the boy.
Around 10pm Sunday evening, two young people found the 4-year-old dead in a small wooded area not far from the playground.
According to Loeffel, the investigation is moving forward, but he refused to comment on whether or not police had singled out a suspect.
“We don’t want to answer that,” he told reporters.
On Friday, police said they were interested in a red car, possibly a Skoda, which was seen in the area when the boy was killed.
“We want to get in touch with the driver,” Loeffel told reporters, according to the Expressen newspaper.
Police continue to knock on doors in the area and according to Loeffel, around 40 officers are involved in the investigation.