Police in Ohio are investigating a shooting at a neighborhood street festival that left 12 people shot. Multiple outlets report the attack occurred as gunfire broke out near the event, prompting people to scramble for cover and others to rush to help the wounded. Authorities say they are searching for suspects and have issued information requests as investigators work to identify those responsible. NBC News reports police say the shooting “stemmed from a dispute involving two rival groups,” though details of the dispute were not widely elaborated in the coverage. Other reports describe the incident in general terms as a shooting that produced multiple casualties near the Old West End Festival area. Some outlets also report that investigators arrest a suspect in connection with the shooting, and at least one source says a second suspect is arrested, while other reports continue to describe suspects as at large. The case remains under investigation as police seek to determine what led to the shooting and identify all individuals involved.