The incident took place on Clinton Close at around 8.30pm yesterday.
Two men wearing black balaclavas entered a property armed with knives and threatened a man inside.
They then punched the man in the face and demanded cash from him before leaving with phones and a wallet.
Dc Hollie Hughes, of Clacton CID, said: “The suspects forced entry into the property before threatening and assaulting the occupant. Fortunately the victim was not seriously hurt but has been left extremely shaken by the ordeal.
“We believe these suspects may have parked up nearby and would have looked out of place considering the weather and lack of movement on our roads.
“We would urge anyone who noticed anything suspicious or has dashcam or CCTV footage at around the time of the incident to call Clacton CID on 101 quoting incident number 1050 of 01/03 or Crimestoppers anonymously on 0800 555 111.”
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