One of the three men was arrested at the end of last week.
The other two will be remanded in custody on Monday, according to prosecutor Anna Svedin.
All are suspected of murder and attempted murder and one of them also of a felony.
- They are not available to us and will all be in demand internationally, says Anna Svedin.
Since the end of June, another man has been detained on probable cause on suspicion of murder, as well as attempted murder.
According to the man's lawyer, he denies the crime.
According to Anna Svedin, the case has links to another case where prosecution will be brought on 14 July.
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A black, stormy sea.
This is how Adriana's mother Susanne describes the grief - seven months after the fatal shooting.
Photo: Frida Jareteg / SVT
It was early in the morning on August 2 last year that a number of shots were fired from a passing car in a parking lot at a fast food restaurant in Botkyrka.
A twelve-year-old girl who was out with her dog was hit by the shots and later died.
Police have previously determined that the girl was not the target of the shots, but have not told who or what the shots were meant for.