DENISON, Texas (KTEN) — Terrell Elementary School in Denison was placed on "full lockdown" for less than an hour Friday afternoon after police received a report of shots fired in the 100 block of Johnson Street, a short distance from campus on Martin Luther King Street.

"We got calls that there was something that sounded like gunfire around the school," said Denison Independent School District Superintendent David Kirkbride. "Police were contacted and, I believe, within a minute-and-a-half were on site. We brought in the kids from recess and locked down the entire building."

No shots were fired on the campus, and the lockdown was lifted less than an hour later at 2:37 p.m.

"The area is now clear," the district said. "Campus activities and pickup procedures have resumed as normal."

Some parents told KTEN they were disappointed that the school didn't inform them sooner about the incident, but they were nonetheless grateful that so many police were summoned to the campus to protect their children.

No arrests have been made as the investigation continues.

 Location of Terrell Elementary School in Denison. (Google Maps)