The order in the U.S. came after a Swiss bank, the Julius Baer Group, filed a complaint earlier this month against the site and San Mateo, Calif.-based Dynadot LLC, Wikileaks' domain name registry, for posting several hundred of the bank's documents.
Some of those documents allegedly reveal that the Julius Baer Group was involved in offshore money laundering and tax evasion in the Cayman Islands for customers in several countries, including the U.S.
The court ordered that "Dynadot shall immediately clear and remove all DNS-hosting records for the wikileaks.org domain name," according to court documents. It also said that Dynadot should prevent the domain name from resolving to the wikileaks.org Web site, or any other Web site or server other than a blank park page until further notice.
A spokesman for the Julius Baer Group could not be reached for comment Monday.
According to its Web site, the purpose of Wikileaks, founded in 2006, is to develop "an uncensorable system for untraceable mass document leaking and public analysis."
Wikileaks has been plagued by controversy since its inception, coming under fire from institutions whose confidential documents have been posted on the site and from critics who have questioned the motives of the site's founders. Still, others have praised the site for supporting the free dissemination of information.
Wikileaks posted a press statement on its site about the U.S. order, calling it "clearly unconstitutional" and said it "exceeds its jurisdiction."