Twitter has been blocked in Pakistan today. According to the Ministry of Information and Technology Pakistan, twitter.com has been blocked because it failed to respond to take action regarding publishing of blasphemous content.
According to the ministry, the calls made to twitter authorities over the issue were not answered.
In 2010, Facebook.com was blocked for the same reason in Pakistan after which the content was removed from the website. Lets see if the twitter authorities respond to the issue and help the government sort out the issue.