The Turkish government has reporedly blocked access to Google public DNS service, essentially closing one of the most popular backdoors that Turks used to circumvent the blocking to the social networking website. Many Turkish Twitter users had recently started to use specific DNS addresses that belonged to Google in order to bypass the blocking ordered by the Turkish authorities earlier this week.

According to Turkish newspaper Hurriyet, the Turkish authorities didn't release any statement regarding the latest move which is believed to be based a direct government order and not a court ruling.

The Turkish government claimed that its decision to block Twitter came after "hundreds of court rulings in Turkey" ordering Twitter to remove content.

There are other public DNS services that Turks may use, including Open DNS, as well setting up a VPN connection.

In the meantime, reports claim that that YouTube is also at risk of being censored in Turkey as well.