The authorities, however, said that they were not declaring Assange's innocence but instead conceding they could not leap the legal hurdles presented by Assange's diplomatic protection. He feared that extradition to Sweden would lead to extradition to the USA where he is wanted for leaking thousands of classified documents.
The accusation against Assange dates from August 2010 when the alleged victim, who says she met him at a WikiLeaks conference in Stockholm a few days earlier, filed a complaint.
Assange is due to give a public statement shortly after rape allegations against him were dropped by Swedish prosecutors on Friday. However, the British police have cleared up, according to Reuters, that if Julian Assange gets out of Ecuador's embassy, he will be arrested.
Without the possibility of Assange coming to court "in a reasonable timeframe", there was no point continuing the probe, she said. Sweden announced that it's dropping its rape investigation against him, and the reasons for doing so are procedural.
His lawyer, E. Samuelsson, called the news, "a total victory" on Swedish Radio.More news: Portland pro-Trump rally organizer: "I can't control everybody"
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"We have been waiting a long time for this decision", Christophe Marchand, a member of Assange's Brussels-based legal team, told AFP.
Asked if she would support the United Kingdom extraditing Assange to the US, May said: "We look at extradition requests when we receive them on a case-by-case basis. Mr Assange remains wanted for a much less serious offence", it said. "The MPS will provide a level of resourcing which is proportionate to that offense".
Assange has denied any wrongdoing. The MPS will not comment further on the operational plan. He was residing in the embassy by right of asylum since 2012.
He also said the case was politically motivated, as it followed massive Wikileaks dumps of secret U.S. military reports that year.
More recently, WikiLeaks posted hacked emails from the Democratic National Committee and the personal email account of Hillary Clinton's campaign chairman, John Podesta, which US intelligence believes were obtained by Russian hackers working to interfere with the 2016 election.