Five people were shot around 1 a.m. Saturday in the 8300 block of Homer Street in Detroit, police say.
A police officer in Ohio was shot and killed while responding to a call overnight, officials said.
The US headed into the Fourth of July weekend with many parades and fireworks displays canceled, beaches and bars closed, and health authorities warning that this will be a crucial test of Americans self-control that could determine the trajectory of the surging coronavirus outbreak.
The number of confirmed cases of the coronavirus (COVID-19) in Michigan has risen to 65,135 as of Saturday morning, including 5,969 deaths, state officials report.