POLICE have asked residents to contact them if they are approached by a man offering "deals on tarmac".
Dyfed-Powys Police said it is aware a man is approaching householders in Libanus near Brecon.
A message from the police said: "It is believed that this male is a rogue trader. The male is driving a Black Chevrolet Lacetti SE vehicle.
"If this male calls at your property please contact police on the non emergency number 101."