Police searched the area after a report that a 13-year-old girl was beckoned over by a man in a white van in Winslow’s Greyhound Lane car park last Tuesday.
Winslow Combined School sent out a text alert to all parents.
A police spokesman said: “Police searched the area but no-one matching the description was located.
“The man is described as African or Afro-Caribbean, about 50 years old, of medium build, with very short hair and stubble. He wore a black zip-up jacket and black jogging bottoms.”