Police are appealing to anyone who might have seen two men acting suspicious in The Quadrant area of Worthing on Thursday (December 20).
At just after 6pm, two men broke into a house on The Quadrant and then threatened the occupant.
They assaulted him and demanded money, however the victim managed to fight back and believes he may have injured one of them in the face.
The two men fled from the property empty handed.
Inspector Steve Rayland said: “The victim received some minor injuries including some cuts to his face and was treated at hospital.
“These men were wearing balaclavas and ran away from the scene. Anyone with information or who saw two men in the area at the time is asked to contact police on 101 quoting serial 1339 of 20/12. Or alternatively call the independent charity Crimestoppers anonymously on 0800 555 111.”