A Saudi activist has been sentenced to 10 years in prison and barred from travel abroad for another decade, a human rights lawyer said Tuesday. The activist, Abdel-Karim al-Khadar, a professor of Islamic studies from conservative Qassim Province, has been under arrest since April 2013. He was considered among the most vocal critics of religious extremism and militancy. He had posted videos online giving religious lectures in support of women’s rights and coexistence. The rights lawyer, who spoke anonymously for fear of reprisal, said Professor Khadar had been sentenced Monday by Saudi Arabia’s Specialized Criminal Court on charges including disobeying the ruler, founding a human rights organization and supporting protests. He is the third rights activist to be sentenced to prison in the past week.