Harford County Sheriff Jeffrey Gahler tweeted out an update a short time ago stating that the 26-year-old female suspect and three others are dead and seven more are injured.

According to his updates, three people are expected to survive, one person is at the hospital, and two people died at the scene.

Officials say the woman was temporarily employed at the Rite Aid distribution center and that she opened fire when she arrived for her shift Thursday morning.

Police do not know the shooter’s motive at this time.

The investigation is ongoing.