Grand Rapids, MI - Grand Rapids police are asking for help identifying a group of people involved in a downtown assault that was captured on video.The attack occurred about 10:15 p.m. Tuesday, July 28, in the area of Monroe Avenue and Louis Street NW near Rosa Parks Circle. Police released video of the assault Monday.In the video captured by a bystander, a male in a group points and yells for others to "sock" a man who walks by while calling him a racial slur. Several people run up to the man and begin punching and kicking him as he's on the ground.At one point, a female says she feels bad recording the video. The suspects leave, and a person comes to help the man.Police said the victim declined medical treatment.No arrests have been made at this time.Grand Rapids Police Chief David Rahinsky said authorities "will not tolerate this behavior in our city."If you know or recognize anyone in this video, contact police at 616-456-3337 or call Silent Observer at 616-774-2345.