A teacher was taken into custody Wednesday after he fired at least one shot inside a Georgia classroom, police said.

Jesse Randall Davidson, a 53-year-old social studies teacher, barricaded himself inside a classroom at Dalton High School on Wednesday morning, the Dalton Police Department tweeted.

One student who injured her ankle as the school was being evacuated was treated by medics. No other children were injured or in danger, according to police. The Georgia State Patrol also responded to the incident.

Davidson was charged with aggravated assault, carrying a weapon in a school zone and making terroristic threats, among others, according to Whitfield County Sheriff’s Office records.

Dalton police spokesman Bruce Frazier said students tried to enter Davidson’s classroom about 11:30 a.m., but the teacher wouldn’t allow them in, according to video of news conferences posted by WTVC-TV.

Davidson forced the door shut when the principal tried to open it. The teacher then fired a shot from a handgun through a window, prompting a lock down, Frazier said.

The shot did not appear to be aimed at anyone, Frazier said. Davidson surrendered less than an hour later. Parents were advised to meet their children at a convention center nearby. The school serves about 2,000 students, according to its website.

Davidson has worked at the school since 2004 and is also the play-by-play announcer for the school’s football team, officials said.

The alerts were particularly jarring on a day when much of the country watched students return to the high school in Parkland, Fla., where 17 people were gunned down on Valentine’s Day.