A drill testing preparedness in the event of a terrorist attack led to a stampede at a Kenyan university on Monday, killing one and injuring 20. A statement issued by Strathmore University confirmed the death of a staff member, who is said to have died from injuries as result of a drill that aimed to test the university and emergency respondent’s level of preparedness, if there were to be a terrorist attack.

Students attending the university told a local radio station that loud bangs and people posing as attackers led to a panicked atmosphere, causing people to run toward the exits. An attack that occurred on Apr. 2, when four Somali Extremists who were part of the group al-Shabab, killed nearly 150 people is a memory still fresh in the minds of many.

A similar incident occurred near a Nairobi university, where an explosion caused by an electrical malfunction was confused for a terrorist attack. The explosion prompted a stampede that killed one student and injured over 100 others.

Moi University experienced terror-related panic in October after school officials revealed that two missing students were thought to have joined al-Shabab. Students left the school in fear of an impending attack.

Since sending troops to Somalia to fight al-Shabab in 2011, Kenya has seen an increase in explosive attacks. The Kenyan troops are part of African Union forces assisting Somalia fight against al-Shabab’s presence in the area.