article_snippet.sent: Turkey has blocked access to Twitter and YouTube after Twitter and YouTube refused a request to remove pictures of Turkish prosecutor Mehmet Selim Kiraz held during the siege last week.
article_snippet.sent: Before imposing the blocks on the websites, Turkish authorities had tried to prevent newspapers printing images taken during the siege last week.
article_snippet.sent: newspapers were accused by the government of 'spreading terrorist propaganda' in sharing the images of the hostage-taking.
article_snippet.sent: It was not immediately clear whether any of the attacks were linked, but Prime Minister Davutoglu warned of the risk of 'provocations' and attempts to cause chaos ahead of June's national election.