(CNN) -- A Web site promoting a Dutch lawmaker's film critical of Islam has been suspended by its host company after the firm received unspecified complaints about its content, the company disclosed Sunday.
Demonstrators in Amsterdam during an anti-racism protest aimed at far right MP Geert Wilders on Saturday.
"This site has been suspended while Network Solutions is investigating whether the site's content is in violation of the Network Solutions Acceptable Use Policy," the company said in a posting on the Web site set up to promote the film. "Network Solutions has received a number of complaints regarding this site that are under investigation."
This month, the U.S. Department of Homeland Security and the FBI warned that the release of Geert Wilder's film, "Fitna," could spark protests and riots. Wilders, a member of the Dutch parliament from the conservative Party for Freedom, has been outspoken in his criticism of Islam and his support of immigration restrictions.
The company did not immediately respond to a request for further comment.
Network Solutions' terms of service ban material "that is obscene, defamatory, libelous, unlawful, harassing, abusive, threatening, harmful, vulgar, constitutes an illegal threat, violates export control laws, hate propaganda, fraudulent material or fraudulent activity, invasive of privacy or publicity rights, profane, indecent or otherwise objectionable material of any kind or nature."
Last month, Pakistan's government blocked the popular video-sharing Web site YouTube because of a "highly blasphemous" and "anti-Quranic" video featuring Wilders, according to a government news release. The video was reportedly a trailer for his movie.
Concerns over Wilder's film follow the uproar over a Danish newspaper's publication of caricatures of Islam's Prophet Mohammed in late 2005. Some Muslims believe it is forbidden by the Quran to show an image of the prophet.
Demonstrations erupted across the world in early 2006 after other newspapers reprinted the images as a statement on free speech. Some protests turned deadly, with demonstrators in predominantly Muslim countries, including Indonesia and Pakistan, turning their ire on Denmark.
Several newspapers in Denmark reprinted the cartoons in February after authorities there arrested several people who allegedly were plotting a "terror-related assassination" of one of the cartoonists. That sparked violent protests in three Afghan cities earlier this month -- and an outraged message from fugitive al Qaeda leader Osama bin Laden, who complained that mocking the prophet violated "the etiquettes of dispute and fighting."
And in the Netherlands, Dutch director Theo van Gogh was stabbed to death in 2004 by a member of a radical Islamic group after his short film "Submission" used verses from the Koran written on women's bodies to criticize the treatment of women in Islamic cultures.
His co-producer on the project, Somali-born Dutch lawmaker Ayaan Hirsi Ali, lived under government protection for several years after van Gogh's killing. E-mail to a friend