The assistant athletic director at Catholic Memorial School in West Roxbury was fired this week after administrators discovered he was allegedly sending inappropriate text messages, school officials said.
James Cerbo was dismissed from his position at the school following allegations about the messages and an investigation, according to school spokeswoman Susan Griffin.
The Department of Children and Families was notified of the investigation, Griffin said.
The school sent letters this week to students' families regarding the dismissal.
Officials did not say whether the recipient of the messages was a student at the school, which is an all-boys academy teaching grades 7 through 12.