School children are being warned to stay away from a man in a clown mask offering them lift in a white van.
The school has alerted parents to a suspicious vehicle which has been approaching students.
In one incident reported to Staffordshire Police, a child was asked if they wanted a ride in the Wolstanton area of Staffordshire while another pupil of St John Fisher Catholic College was on their way to school when they were left 'upset and frightened' by the occupants of a van who were wearing 'clown-like' masks.
