A high school student with special needs at Watchung Hills High School was left out of her school's yearbook.

Claudia DeFabio posted a picture of her sister, Glenda, on Facebook.

Claudia says her picture was not included in the yearbook, along with the rest of the special education students.

Claudia says that's inexcusable.

The superintendent of the school district, Elizabeth C. Jewett, released a statement apologizing to the family, saying, “We are investigating what occurred and are currently looking to see if any other un-intentional omissions were made. We intend to carefully review our processes to avoid any erroneous omissions in the future."

The social media post was shared thousands of times in just a few hours.