A paraglider is allegedly intimidating people by flying low over the Sussex seafront and being abusive, police have said.
Over the past two years Sussex Police have received reports of the man causing criminal damage, being hostile towards members of the public and “generally behaving in an anti-social manner”.
The force is asking for witnesses to support its investigation, which is being carried out in conjunction with the Civil Aviation Authority.
The man uses Galley Hill, Bexhill-on-Sea, as a launch site.
Sergeant Simon Barden of Sussex Police said: “We’d like to hear from anyone who has seen or experienced aggressive or disturbing approaches from this man.”
A spokesman for Rother District Council said it has had “numerous interactions with him over recent years”.
He went on: “Most recently we received a complaint in July from a member of the public who felt endangered when he was taking off from Galley Hill.
“Our staff have also witnessed him flying low along the seafront in Bexhill. Coastal staff have been advised not to approach him but to collect evidence and report any incidents to the police.
“There is a bylaw restricting taking off and landing along the area of the seashore and we’re currently collecting evidence of any contraventions and we will liaise with the police to support their investigation.”
Anyone with information is asked to contact Sussex Police online or phone 101 and quote Operation Surfer.