Atlanta Public Schools sent emails, automated phone calls, and texts to parents on Wednesday night about threats made against schools in the district.

The unspecified threats were made on social media, according to the message. Which schools were targeted in the threats is also unknown.

APS said that there would be heightened security and patrols at all schools on Thursday, Sept. 12, which was being coordinated by the school’s police force, the Atlanta Police Department, and the Fulton County Sheriff’s Office. The message also said the FBI and GBI were investigating the threats.

There was no mention of canceling classes but APS urged schools to remain “vigilant” and report suspicious activity.

Across social media, some parents indicated they would keep their children at home on Thursday.

The threats come just over a week after the fatal school shooting at Apalachee High School in Barrow County that killed four and wounded nine.

Rough Draft has reached out to APS for more details. Please check back for updates.