The roof of what is thought to be a house or stable has become detached from the building, lifted by the storm to the centre of a road between the Cornish villages of Vogue and Carharrack.
The roof was thrown by winds of up to 100 miles per hour to land on the road, blocking access for traffic in the area.
Traffic flow monitoring portal Inrix reported the B3298 road at Carharrack has been shut in both directions.
Inrix said: “B3298 in both directions partially blocked due to debris on road near Foxes Row. Traffic is coping well.
“The roof of a house is reportedly in the road.”
The Met Office has issued a second red warning for Storm Eunice, covering the southeast and east of England including London.
This means that during the storm, there could be a danger to life from flying debris.
Storm Eunice “could well be one of the worst storms in three decades”, BBC Weather warned ahead of Friday.
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