The shooting happened about 11:30 p.m. Monday at Boom Island Park, just south of the Plymouth Avenue Bridge, Park and Recreation Board spokeswoman Robin Smothers said. No arrests have been announced. “There was no official Fourth of July event or fireworks at the park or on the river,” Smothers said in an email, “but park visitors did gather on their own at Boom Island and other parks to celebrate the holiday.” Smothers said “several [were] In critical condition.” He did not have information on the identities of the victims or how many were among those with critical injuries. A park police incident report listed four people with “serious injuries,” three of whom were 18 and the other 22. HCMC spokeswoman Christine Hill confirmed early Tuesday afternoon that the city center hospital had received eight people from the Boom Island incident. Hill declined to disclose any of their conditions. “After shots were fired, the large group that had gathered in the park dispersed, many leaving before police arrived,” Dawn Sommers, another Park Board spokeswoman, said late Tuesday morning. “The majority of the shooting victims later arrived at local hospitals on their own, where the police were notified by the hospitals.” A Park Board spokeswoman did not have information on the circumstances surrounding the fire. They said anyone with information about the shooting should call park police at 612-230-6550. Dan Zeller, whose home overlooks the park, said a bullet went through the main living area, exited the kitchen island and “rolled into the back of our couch.” He and others inside were elsewhere in the house at the time. Zeller said he went down to the park about 30 minutes before the shooting and saw what he described as “a pretty chaotic scene of people coming in and out of the park… People were shooting fireworks at each other and also normally into the sky… It was one of those things. People just kind of show up and it becomes a…