Lunch turned into a brawl at Lucky Ducks restaurant Sunday afternoon.

According to Bismarck Tribune, police are investigating an assault inside the restaurant when a man was dining with his family, and another man approached the table, they exchanged words, then two other men got in the mix and started assaulting the man.

The brawl overflowed outside the restaurant and on the side-walk.

When the policed arrived they found the two men and one of the men had physical injuries. It is not known if any of the men needed or received medical assistance for their injuries.

The matter is under investigation and no injuries were reported.