WATCH: Harford County shooting investigation

Authorities respond to a shooting in Harford County, Md., on Thursday, Sept. 20, 2018. Authorities say multiple people have been shot in northeast Maryland in what the FBI is describing as an "active shooter situation." (Jerry Jackson /The Baltimore Sun via AP)

WASHINGTON – The Harford County Sheriff’s Office is warning people to avoid the area of Spesutia and Perryman Road after a shooting Thursday.

Authorities say three people were killed. It happened at a Rite Aid distribution facility in Harford County, Maryland.

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