<p>STORY HIGHLIGHTSYousif al-Muhafda is accused of disseminating false information about clashesA prosecutor points to a photo that went up during a demonstration MondayThe activist's attorney says he was observing the demonstration, not participatingHuman rights activists say his arrest is part of a growing crackdown on social media</p><p>(CNN) -- Twitter posts about anti-government protests have landed a human rights activist in Bahrain behind bars.</p><p>Said Yousif al-Muhafda is accused of disseminating false information about clashes between security forces and protesters in the country's capital, the state-run Bahrain News Agency said Thursday.</p><p>Al-Muhafda, the head of documentation for the Bahrain Center of Human Rights, was arrested Monday during a demonstration, attorney Mohamed Al-Jishi said.</p><p><a href="http://www.cnn.com/2012/12/20/world/meast/bahrain-activist-arrested/index.html">Keep reading...</a></p>