A woman killed three people and wounded three others before fatally shooting herself at a drugstore distribution center Thursday in Harford County, Maryland, reports CNN quoting officials.
The woman was reported to be a disgruntled employee. Sheriff Jeffrey Gahler told reporters the woman was a temporary employee and showed up for work at her normal time.
She shot people outside the building and on the warehouse floor, he said. The woman died at a nearby hospital after shooting herself in the head, he said.
Police are still searching for a motive, he added.
A law enforcement official briefed on the incident said the suspect was at some point a security guard at the Rite Aid support facility where the shooting occurred.