BUFFALO, N.Y. — Active shooter drills are becoming almost as common as fire drills in schools across the U.S. 

In the wake of the school shooting in Florida, the Buffalo Public School District is evaluating its own emergency response plans. 

"We actually have four drills just for active shooter, or active situation, each year now," said Buffalo Public Schools Chief Operating Officer Kevin Eberle.

Wednesday's deadly shooting at Douglas High School in Florida has many asking if schools are safe anymore. In Buffalo, city and school officials are confident with the plans in place, but want to make sure they stay current.

Buffalo Mayor Byron Brown stated, "We are constantly reevaluating our plans, constantly improving and upgrading our systems, constantly talking to school district officials, parents, teachers and others to make sure that we're doing everything that we can to ensure the safety of our students, our teachers, our school workers and parents who come to schools to pick up their children."

Eberle credits great collaboration for a multi-agency response in Buffalo between the district, mayor's office, police and fire departments and FBI​.