Police have released a photograph of two people they would like to speak to about an incident in Sheffield Park Garden, near Uckfield.
They received a report of people trespassing on the site and using a catapult to fire items at ducks on Saturday (September 12), at about 5.30pm.
They believe the two people in the photograph have information that could help their investigation and are keen to speak with them.
Anyone who recognises them, or who has any other information about what happened, is asked to contact police online or by calling 101 quoting serial 86 of 16/09.
Alternatively, you can contact the independent charity Crimestoppers anonymously on 0800 555 111.