Sweden's Supreme Court has denied Julian Assange's appeal to dismiss his arrest warrant for an alleged rape and sexual assault.

The warrant was originally issued in 2010 by a Swedish court accusing the 43-year-old Assange of two separate alleged sexual assaults that he claims were "consensual," the Guardian reports.

The Supreme Court said in a statement that an investigation is set to take place in London so there is no reason to lift the arrest warrant. 

Since 2012, the Wikileaks founder had refused to face this case by choosing asylum in the Ecuadorian Embassy in London to avoid extradition to Sweden. Assange is worried that if the UK extradites him for this case in Sweden, he would also be forced to face the courts in the United States for his Wikileaks that exposed thousands of top secret cables in 2010, reports the BBC.

In March of this year, Sweden's prosecutors agreed that Assange would be questioned in London, which actually the deadlock on the case for almost five years. 

Lawyer Claes Borgström, representing one of the complainants against Assange, said, "The reasoning of the court indicates that it may take a different view with the passing of time."

Assange is known to have revealed 500,000 classified military files detailing the wars in Iraq and Afghanistan and showed the public some 250,000 diplomatic cables that embarrassed the White House and the U.S. government, ABC.net.au reports.