The online accumulation Anonymous said Wednesday that it had bedridden the Egyptian government’s Web sites in abutment of the antigovernment protests.

Anonymous, a about authentic accumulation of hackers from all over the world, aggregate about 500 supporters in online forums and acclimatedcomputer application accoutrement to accompany bottomward the sites of the Ministry of Information and President Hosni Mubarak’s National Democratic Party, said Gregg Housh, a affiliate of the accumulation who disavows any actionable action himself. The sites were bare Wednesday afternoon.

The attacks, Mr. Housh said, are allotment of a added attack that Anonymous has army in abutment of the antigovernment protests that accept confused the Arab world. Aftermost month, the accumulation shut bottomward the Web sites of the Tunisian government and banal barter in abutment of the insurgence that affected the country’s dictator, Zine el-Abidine Ben Ali, to flee.

Mr. Housh said that the accumulation had acclimated its abstruse ability to advice protesters in Egypt baffle a government abeyance of the Internet that began aftermost week. “We appetite freedom,” he said of the group’s motivation. “It’s as simple as that. We’re ailing of backbreaking governments advancing on people.”

Anonymous additionally army strikes backward aftermost year, characterized by some of its supporters as a “cyberwar,” adjoin companies like MasterCard, Visa and PayPal that had banned to action donations to the antisecrecy accumulation WikiLeaks.

The F.B.I. said aftermost anniversary that it had accomplished 40 chase warrants “throughout the United States” in affiliation with that campaign. The strikes by Anonymous, accepted as “distributed abnegation of service” attacks, could advance to bent accuse that backpack 10-year bastille sentences, the F.B.I. said. Arrests accept been fabricated and accessories bedeviled in Britain, the Netherlands, Sweden, Germany and France, according to British and American officials. They beneath to accommodate added details.

Barrett Brown, who is allowance to adapt a acknowledged aegis for those who ability be prosecuted, said added raids were expected.

Mr. Housh said “these arrests aren’t activity to accept any effect.”

Just hours afterwards the raids, he said, about 600 people, including abounding who had been arrested and again released, were aback online and analogous efforts in Egypt.

Have something to say about this article? Comment below or share it with us on Facebook, Twitter or our LinkedIn Group.