One adult victim was transferred to Methodist Hospital, and one child victim was transferred to Riley Children's Hospital, Danielle Sirilla, a spokesperson for Indiana University Health, confirmed to HuffPost Friday morning.
They're also reporting that two people have been transported to a local hospital. We have confidence in Noblesville Schools Superintendent Dr. Beth Niedermeyer and her team, law enforcement, and first responders.
Noblesville, which is about 20 miles northeast of Indianapolis, is home to about 50,000 people.
One victim is a teenage girl.
Parent Maria Roney, whose son is an eighth-grader, said even with seeing school shootings across the country, she never expected it to happen here.
A male student was taken into custody in connection with the shooting.
Update: Police are telling the media that the suspect acted alone.
Authorities did not release the name of the suspect or the names and conditions of the injured people. "To everyone in the Noblesville community - you are on our hearts and in our prayers".
Video from that news station showed scores of parents swarming the high school, trying to reach their children.
Indiana State Police Superintendent Doug Carter said he had briefed Gov. Eric Holcomb as Holcomb returned from Europe.
Barnes said investigators would remain inside the school for several hours and that because of the quick response, "We think lives were saved today".
"If it weren't for him, more of us would have been injured for sure", said seventh-grader Ethan Stonebraker, according to the Associated Press.
An unnamed student who spoke to the broadcaster said the shooter entered a science class and the teacher swatted a gun away from the shooter, who may have been a fellow student.
The man, who described the shooting as "chaos" for his family, said the boy texted his mother, "come get me".
This item has been corrected to reflect that the shooting was at a middle school, not a hospital.