Police are investigating an incident where a male was bitten by a brown coloured dog on Main Street in Frizington.
The incident occurred on 3 July.
A Cumbria Police spokesman said: “The dog is described as being a possible Bullmastiff.”
Anyone with information is asked to call PC2474 Huff on 101 or Crimestoppers on 0800 555 111 quoting log 69 of 5 July.