Mobile and television services also affected
Internet access has been blocked in Egypt even as unprecedented protests against the Hosni Mubarak government continue, most of them reportedly co-ordinated via the Web.
Web watchers have confirmed that most of Egypt’s Internet has been blocked. Herdict.org spokeswoman Jillian York said Internet access in Egypt was virtually absent.
Facebook spokesman Andrew Noyes said the social networking site is seeing minimal traffic from Egypt. Egyptians do not have access to Google and YouTube as well.
Egyptian authorities have also reportedly shut down official Domain Name Servers (DNS).
Even mobile and television services are affected.
Vodafone said, "All mobile operators in Egypt have been instructed to suspend services in selected areas." Television network Al Jazeera has also confirmed that they had to switch transmission to another frequency as its signal on Nilesat was jammed.
Last week, access to social networks such as Twitter and Facebook had been blocked for Egyptians. But the government had denied it was behind the block.
Over 100 people have been killed in the protests in Egypt.
Meanwhile, Reuters reported that China has blocked the word "Egypt" from micro-blog searches.