A civilian employee of the Navy faces up to life in prison for allegedly setting fire to the USS Miami, a nuclear-powered attack submarine while it was dry docked in Maine.

The fire caused more than $400 million in damages, mostly to the torpedo room and command area inside the submarine’s forward compartment. The Miami was dry docked at the Portsmouth Naval Shipyard in Maine for a complete overhaul.

Casey James Fury, 24, is being charged with arson stemming from the May fire as well as a secondary one which occurred outside the sub on June 16.

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