In a news release, the district said while police searched for the neighborhood for the robbery suspect, they ordered a lockout at West Allis Central High School, Franklin Elementary School, and Jefferson Elementary School.
Police said they were called to an armed robbery near 83rd and Beecher at about 2:20 p.m. after he reportedly pulled out a handgun during a robbery.
Police described the suspect as a black male wearing a tan or gray hoodie, gray stocking cap and dark sunglasses.
Students had to remain in the building during the lockout and no one will be allowed in.
After searching the school area, police said the lockdown was lifted. They still have not captured the suspect.
This is a developing story. Check back later for updates.