Two teenagers targeted a home in Upwell in an attempted robbery on Saturday.
Police say the pair knocked on the door of a home in School Road at around 4.45pm. When the woman who lived there refused to let them in, one of them forced his way in, pushing the woman as he did so.
He searched the kitchen while the second youth stood at the door before they both left empty handed. The woman was left shaken but unharmed.
Detectives have appealed for witnesses and are keen to trace the owners of a small three-door white or silver car seen in the area at the time.