In a written statement, Swedish Foreign Ministry legal chief, Anders Rönquist, dismissed the UN panel's findings, the TT news agency reported.
"Mr. Assange has chosen, voluntarily, to stay at the Ecuadorian embassy, and the Swedish authorities have no control over his decision to be there. Mr. Assange is free to leave the embassy at anytime," Rönquist said in the statement.
And in a press release, the Swedish Prosecutor's office said that the UN panel has "no formal role in the ongoing investigation by Swedish authorities."
Meanwhile, in London, UK officials also rejected the UN panel's findings, news agency AFP reported.
Assange is due to make a statement at 1pm CET today, Friday.