An anonymous caller claiming to be a psychic said there was a mass grave at a house in east Texas. But US police say there were no bodies found.
In the same time media in US reported there were up to 30 dismembered bodies including children buried there.
Again the police found no indication of bodies anywhere on the property.
Authorities say they have a name and number and are trying to trace the caller.
Aerial shots on local TV stations showed a dozen police vehicles parked along a road in wooded country, 50 miles (80 km) east of Houston, as the authorities investigated the claim.
The FBI confirmed it had been asked to take part in the investigation.