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A police operation is under way in an exclusive area of Gravesend.
A convoy of officers in marked and unmarked vehicles arrived at a house in Singlewell Road during an investigation into African and Indian artefacts.
An officer at the scene said: "We are investigating reports. Nothing has been found and the property owner is helping us."
The investigation began after reports that a protected rhino horn and other prohibited items may be in a house in Gravesend.
The occupier of the property, which is close to Mid Kent golf club, is understood to deal in rare items.
A new Bentley with a customised registration was parked in front of the house.
As police officers, specialists and forensic officers searched the house wearing combat gear and latex gloves, another neighbour said: "They suddenly appeared. There were no sirens or lights."
A police spokesman said: "No one has been arrested or charged with any offences."