The FBI reported that there were 61 “active shooter” incidents in the United States last year, an increase of more than 50% from 2020 and nearly twice as many as five years ago.
In an annual report released Monday, the FBI said 103 people were killed and 140 were injured in the shootings, except for the gunmen.
The FBI defines an active shooter as “one or more persons actively involved in killing or attempting to kill people in a populated area.”
The report comes nine days after a gunman killed 10 people and injured three others at a supermarket in a predominantly black neighborhood of Buffalo, New York.
The FBI is investigating the shooting as a hate crime and racially motivated violent extremism.
The FBI said its active shooter data for the past five years shows an “upward trend,” with the number of incidents increasing to 40 in 2020 and 30 in 2017.
The number of casualties recorded last year – 243 – was the third highest in a five-year period, with the number of fatalities posting their highest level since 2017.
The alarming rise in active shooter incidents has prompted many US schools and other institutions to incorporate the practice into their security preparedness.
The two active shooter incidents with the most casualties occurred at a FedEx operations center in Indianapolis, Indiana, and a Kroger supermarket in Collierville, Tennessee.
In the first incident, on April 15, 2022, the gunman killed eight people and injured seven others before committing suicide.
On September 23, 2021, in a shooting at a Kroger supermarket, a gunman shot and killed one person and injured 14 others and then pointed a gun at himself.
Other high-casualty incidents were shootings at a high school in Oxford, Michigan, and a grocery store in Boulder, Colorado.