Plague robot
From Tardis Wiki, the free Doctor Who reference
Plague robots were androids under the control of Sister Bridget, who was actually a Galatean. They were later destroyed by Chiyoko. (COMIC: Apotheosis)
They later resurfaced on Earth, where they were examining the plague that had began again. Whenever they found a human that had been infected, they destroyed everything within a mile radius. (COMIC: The Child of Time)
