Three Christian teachers were murdered Monday morning in Kenya during an attack on a primary school believed to have been carried out by the Somalia-based, al-Qaeda-linked extremist faction Al-Shabaab. 

Kenya’s National Police Service confirmed in a post on Twitter that three teachers were killed when suspected Al-Shabaab militants attacked the school as well as a police post and telecommunications mast in the town of Kamuthe in Garissa County around 2 a.m.

As Al-Shabaab has conducted other deadly attacks in the Garissa area in recent years targeting the Christian community, the United States-based nonprofit persecution watchdog group International Christian Concern reports that the three teachers were Christian. 

ICC named the deceased instructors as Caleb Mutua, Titus Ushindi, and Samuel Muthui Kyonzu. Also, ICC reports that a fourth victim named Joshua Mutua survived with serious leg injuries.

Citing a police report, The Associated Press notes that one Muslim teacher at the school was abducted while the life of a female nurse was spared by the assailants.