Police are appealing for witnesses to an incident in Bognor Regis on Monday, March 28, in which a boy was chased and threatened by an older child on his way home from school.
The nine-year-old victim reported being chased along London Road between 3.15pm and 3.35pm by a child who claimed to have a knife and threatened to stab him.
He escaped unharmed, but officers would like to identify his pursuer and establish the full circumstances of the situation.
The suspect is described as a boy of around 13 years old, with blonde hair and of a chubby build.
Anybody who witnessed the incident or has any information which could help can contact police online, quoting serial 1302 of 28/03.