Pakistan on Thursday blocked access to the popular video sharing website YouTube in a bid to contain 'objectionable' material one day after banning Facebook for the same reason, officials said. 'We have blocked YouTube. At first we blocked the URL (which was carrying this material) but there were a lot of complaints about the content,' Pakistan Telecommunications Authority (PTA) spokesman Khurram Mehran told selfnews. 'We blocked it because objectionable material was still present,' Mehran said, providing no immediate further details. The PTA blocked access to Facebook on Wednesday after a court ordered a ban on access to the social networking site until May 31 following an invitation from a private user asking people to send in caricatures of the Prophet Mohammed. Islam strictly prohibits the depiction of any prophet as blasphemous and Muslims all over the world staged angry protests over the publication of satirical cartoons of Mohammed in European newspapers in 2006. Wahaj us Siraj, a spokesman for the Internet Service Providers Association of Pakistan (ISPAK) and also CEO of Nayatel, a leading service provider, confirmed that PTA had ordered the ban on YouTube indefinitely. 'They ordered the full YouTube site blocked. So that order was implemented by the Internet service providers and Internet backbone providers,' Siraj said. He told selfnews that blocking Facebook and YouTube would slash up to a quarter of all Internet traffic in Pakistan. 'These two sites take 20 to 25 percent of the country's total Internet traffic so we are seeing a drop in Internet traffic,' he said. Pakistan briefly banned YouTube in February 2008 in a similar protest against 'blasphemous' cartoons of Mohammed. As a result, YouTube said an Internet service provider complying with Pakistan's ban routed many worldwide users to nowhere for a couple of hours. 