A Nigerian Army Captain who led an emergency response team was killed in Borno on Sunday, gunned down by a fellow soldier who subsequently took his own life, Premium Times reports.

Highlights:

• The Army said the tragic incident happened in Chibok, Borno.
• Eyewitnesses said Army captain, T. Mani, was on Sunday morning patrol with other officers when they responded to a distress call that Silas Ninyo, a staff sergeant, was beating civilians at a nearby location.
• Upon arrival, Mani and his team members prevailed on Ninyo and rescued the civilians from him; but the situation quickly turned fatal when they tried to disarm their colleague.
• Ninyo opened fire, killing Mani, authorities said.