Fulton County Schools Superintendent Robert Avossa Friday apologized to parents for the way the district handled Tuesday’s release due to weather.

Fulton announced to parents at 1:37 p.m. that it was releasing students eight minutes later. By then, traffic was already backed up on highways. Parents couldn’t get to school and school buses could not get children home. An estimated 2,000 students spent the night at school.

In a voicemail, Avossa said the system learned from the experience.

“I want to apologize for what many of you went through,” he said. “I would never intentionally put you or your children in harm’s way.”