Wisconsin police said an active shooter threat was “neutralized” before he was able to enter a middle school with a rifle.

Police responded to reports of the active shooter at the Mount Horeb Middle School in Dane County at about 12:30 p.m. local time.

School officials reassured parents that none of the students were harmed and that the suspect did not breach the entryway of the school. The schools of the Mount Horeb Area school district went into a hard lockdown after the active shooter report.

One witness who worked about a block away from the school said she heard numerous gunshots and saw dozens of students running away.

“I thought it was fireworks. I went outside and saw all the children running,” said Jeanne Keller to the Associated Press. “I probably saw 200 children.”

Parents were frantically trying to find their children after hearing about the lockdown.

“One of my daughters is still inside of the middle school as we speak, but all we know is that there are some kids that want to shoot,” said parent Brittany Rodriguez in an emotional interview with WISN-TV.