WICHITA, Kan. (AP) — Authorities say a 16-year-old boy who was fatally shot during a Wichita gas station robbery was armed.

A police report lists the teen’s death as a justifiable homicide. Police say a 42-year-old customer pulled out his gun and fired multiple shots Friday after he was robbed. Three others suspected of participating in the robbery then fled.

Police say the robbery is related to an earlier robbery at a Family Dollar Store in which three people held up an employee at gunpoint and took money and cigarettes. A 17-year-old has been arrested in the robberies and police continue searching for two other suspects.

In Kansas, killings are justifiable when a person reasonably believes deadly force is necessary to prevent death or extreme harm to themselves or others.