LONDON — Julian Assange, the founder of the controversial WikiLeaks website, was arrested here Tuesday and ordered to remain in custody until a hearing next week on his possible extradition to Sweden, where he is wanted for questioning over allegations that he sexually assaulted two women.
The jailing of Assange came as governments and businesses around the world continued their efforts to halt the ability of WikiLeaks to function.
A Visa Europe spokesman said Tuesday that the firm was suspending its business with WikiLeaks, following in the footsteps of Amazon.com, MasterCard, online pay service PayPal and others.
Assange's lawyer Mark Stephens said his client is innocent of any sex charges and speculated that the accusations are part of an effort by governments to silence him.
"Many people believe Mr. Assange to be innocent, myself included," he said. "Many people believe the prosecution to be politically motivated."
Assange, 39, turned himself in to police Tuesday morning, hours after Britain received a formal warrant for his arrest from Swedish authorities. Assange denies any wrongdoing and says he will fight the attempt to extradite him, beginning with a hearing Dec. 14.
That could be the start of a legal battle that could drag on for weeks or even months, in part because the case against him in Sweden is rather murky. Assange, who is Australian, is eager to avoid extradition for fear that it would set the stage for him to be sent to the U.S. if prosecutors there charge him with offenses relating to the disclosures of State Department diplomatic cables as well as classified Pentagon files on the wars in Iraq and Afghanistan.
Those leaks have turned Assange into an international figure, vilified by the U.S. and governments around the world for spilling official secrets but lionized by activists demanding a free flow of information. The Obama administration accuses Assange of recklessly damaging U.S. relations with other countries and even aiding terrorists.
WikiLeaks' ability to raise money and release information is being hemmed in as the businesses it relies on to operate terminate their relationships, saying the organization's actions are in violation of customer agreements. A PayPal spokesman said a State Department letter Nov. 27, which termed as illegal the dissemination of the diplomatic cables, "triggered a review" of a fundraising account on the WikiLeaks website.
Although businesses can act on their own, the U.S. government faces a high legal hurdle to trying to shut down the site through court action, said Marcia Hofmann, senior staff attorney for the Electronic Frontier Foundation.
A spokesman for WikiLeaks said Assange's arrest would not affect the website's plans to continue publishing its cache of confidential documents. Among WikiLeaks' strategies to keep its content available is so-called mirroring: copying its files and documents to scores of other sites around the Web. As of Tuesday morning, WikiLeaks listed 755 mirror sites, more than twice as many as it said it had just two days earlier.
The sex accusations against Assange in Sweden have dogged him since the summer, before his organization began releasing portions of its huge trove of State Department cables. The allegations stem from separate liaisons he had with two women in August, which Swedish prosecutors say may have involved molestation, unlawful coercion and rape.
Assange insists that the encounters were consensual. His lawyer, Stephens, characterizes the case as a "dispute over consensual but unprotected sex."
Stephens has denounced Sweden as "one of the lickspittle states" that have kowtowed to U.S. demands, particularly by assisting in the controversial practice of "extraordinary rendition," under which the CIA abducted terrorism suspects and spirited them to other countries for interrogation.
The lawyer also asserts that Assange has been willing from the start to cooperate with Swedish authorities but that his offers to submit to some form of questioning, both in Sweden while he was still in the country and later in London, were repeatedly rebuffed.
"We are in the rather exotic position of not having seen any of the evidence [of the crimes] that Mr. Assange is accused of," Stephens told reporters after Tuesday's hearing.
In a packed London courtroom Tuesday afternoon, Assange formally refused voluntary extradition to Sweden and asked to be released on bail. Throughout the hourlong hearing, Assange, in a dark suit, sat quietly in a glassed-in booth reserved for defendants.
Prosecutors objected to the bail request, saying that Assange's nomadic lifestyle made him a flight risk. They noted that he first gave the court only a post office box as an address and, when that was disallowed, a street address in Victoria state in his native Australia.