Officers investigated reports of shots fired about 7:50 p.m., the Independence Police Department said in a statement.
Around the same time, the Kansas City Police Department said a child had been shot and dropped off at a nearby Walmart.
Police are investigating a “rolling gun battle” in a restaurant parking lot, said Independence Police spokesman John Syme.
“The found victim is believed to have been in one of the involved vehicles when she was shot. She was transported to an area hospital and is being treated at this time,” the statement says.
Syme said she was in stable condition.
At least 30 shell casings were found nearby, he said. Police were searching for those involved, he said.