“A warrant for his arrest has been filed,” said press spokesperson Sofie Österhelm at the Stockholm police to daily Aftonbladet.
According to the police, a warrant was issued in his absence on Tuesday and on Thursday evening the man was picked up by police at his home in the central city district Östermalm.
The girl had been on her way to meet a friend of the same age on an early Friday evening in July and it was just outside her friend’s house in central Stockholm that she was suddenly attacked.
“A call was made to the police at 8:24pm,” Stefan Nordenmark of the Stockholm police told the newspaper Expressen at the time.
The girl had been badly shocked, reported the newspaper, but was able to tell police that an unknown man had attacked her and then molested her.
“A man, of no acquaintance to the girl, raped her in a stairwell,” said Anders Molin, station officer of the Norrmalm police, to news agency TT in July.
Police report that the arrest was calm and that they are now looking into whether the man should be kept in custody.
The man was questioned over night between Thursday and Friday, but police are not willing to disclose any details regarding what he has said so far.
The case is classified as aggravated child rape.