A man was assaulted Sunday night when he answered a knock at his door.

According to police, 42-year-old William Sydzik, who lives in a basement apartment near 29th and Woolworth, answered a knock at the door around 8:30 pm, when he was hit over the head with a gun.  

A brief struggle ensued before the suspect ran away.  No arrests have been made.

If you have any information please call Omaha Crime Stoppers at 402-444-STOP (7867).