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HUNTSVILLE, Ala. (WHNT) — Huntsville Police have made a second arrest in connection with the robbery at Qualitest Pharmaceuticals..

Police arrested Devonte Allison on Monday afternoon. He is charged with robbery.

His arrest follows that of Qualitest employee Royale Barbee McGruder. Police arrested her Friday afternoon. She is also charged with robbery.

Huntsville Police say the robbery at the Huntsville plant on Vintage Drive was an inside job. Investigators say several men entered a building when someone opened a door. They say the men took several boxes of medication.

Investigators say more arrests are expected in this case.