Police in the Codnor and Waingroves area are appealing for information after receiving reports of two men carrying what are thought to be air rifles in local woodland.
A suspicious incident was reported to police involving two men with air weapons in Waingroves Woods.
The weapons had not been directed towards or fired at anyone else in the woods.
The first man is described as white, around 5ft 7 inches tall, with short, light brown hair. He was wearing khaki trousers.
The second man is also white, around 6ft tall, of medium build with thick, brown collar-length hair. He was wearing a grey hooded top and dark trousers.
Both men were carrying dark-coloured rifle cases with a strap across their chest.
Officers from the Codnor and Waingroves Safer Neighbourhood Team will be carrying out increased patrols in the area and are asking anyone who sees any suspicious behaviour to contact them on 101.