A 37-year-old man was attacked at his home in Lincoln at around 7pm on August 15 on Dixon Street.
Two men entered a house and assaulted the occupant.
They also ransacked the property, but it is not clear at this stage if anything was taken. The victim was taken to Lincoln County Hospital and treated for minor injuries before being discharged.
Both offenders were white, between 19 and 21-years-old and skinny. Both had short hair and were wearing dark clothing.
Police are appealing for any witnesses or anyone who saw any suspicious activity in the road around that time to get in touch as soon as possible.
Call Lincolnshire Police with information on 0300 111 0300.