According to MLive, a man was shot at about 5:30 p.m. at Rotterdam Avenue near Fifth Street.
A man who declined to give his name told MLive that roughly six or seven people were fighting in the street when someone fired shots from a vehicle that was driving by.
Hospital officials confirmed to FOX 17 that the Hackley emergency room was placed on lock down just after 6:30 p.m.
No description of the suspect or the vehicle have been provided.
Anyone with information on this incident should contact Muskegon Heights Police at 231-733-8900.