The Health and Safety Executive investigation into the collapse at a warehouse in Shropshire, which left a man trapped for hours, will begin in earnest on Monday.
Investigators will return to Edwards Transport near Market Drayton to try to establish how the collapse happened.
A worker who was trapped for hours underneath tonnes of cheese was pulled from the building virtually unscathed, after hours of searching on Friday. It's thought he was saved by the cage on his forklift truck.
A cordon is currently in place around the building.
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