ISLAMABAD (AFP) The government has blocked 800 web pages and URLs to limit access to 'blasphemous material, extending a crackdown that has already banned access to Facebook and YouTube, an official said Saturday. The Pakistan Telecommunications Authority (PTA) banned access to Facebook, YouTube and other links, which included restricted access to Wikipedia, in view of what it called 'growing sacrilegious content this week. At least 800 individual web pages and URLs have been blocked since the governments orders to shut Facebook and YouTube, Wahaj us Siraj, a spokesman for the Internet Service Providers Association of Pakistan told AFP. Siraj said that any decision to restore Facebook and YouTube access would be taken by the PTA. PTA spokesman Khurram Mehran told AFP on Saturday that the authority would lift the ban only after receiving instructions from the government. We are just an implementing authority and we have to act on the orders from the government, Mehran said. Pakistan also briefly banned YouTube in February 2008 in a similar protest against 'blasphemous cartoons.