Suspected Boko Haram members on Saturday attacked a school in Mamudo, Yobe, one of the three states where the Nigerian government imposed a state of emergency in May, Open Doors USA reports. Survivors told media that the attackers arrived with containers full of fuel and set fire to the school. It is believed that some of the victims were burned alive, while others were shot as they tried to flee. According to the Associated Press, 29 students and one teacher were killed. Samaila, a teacher at the school, told Open Doors that he could see scores of parents in shock trying to identify children. An Associated Press journalist also described chaotic scenes at a nearby Potiskum hospital as parents tried to identify their children from among the deceased. About 30 Christians, along with others, attend the school; however, Open Doors could not confirm immediately how many Christians have been affected by the attack. Schools across Yobe have been closed. "The carnage in Nigeria continues," said Open Doors spokesman Jerry Dykstra. "The senseless slaughter of helpless school students is hard to fathom. Pray for the Lord's comfort and grace to all families affected by the latest attack. Pray that the Lord will enable the church to respond in love in the midst of these circumstances and reach out to all affected." Nigeria is ranked No. 13 on the Open Doors 2013 World Watch List of the worst persecutors of Christians.