Police are investigating a fight in downtown Chico that caused damage to one bar just a day before it's scheduled to close its doors. It happened just after 2 a.m. this morning. The owner of the bar, Woody Sjostrom, says he and his bartender were closing up for the night and that everyone had already cleared out. That's when a fight broke out in the street just out front. Police say there may have been 3 people involved, but they're still working through the details. It's still unclear what started the fight. Sjostrom and one other person were able to break it up after a man was thrown into the front window. Only the bottom section received damage, but Sjostrom says it's unfortunate that it happened right before his last day in business. He says he will most likely pay to have the window fixed rather than dragging the matter out in court. One person was arrested, but police say the fight is still under investigation. No one was injured.