The family of Ahmed Mohamed, a Muslim teenager who infamously brought a homemade clock to school and had it mistaken for a bomb, filed a lawsuit against Texas school officials in federal court Monday.

The suit alleges the 14-year-old boy’s civil rights were violated when the Irving Independent School District suspended him three days despite not having a bomb in the clock and having police charges against him dropped. Mohamed’s parents also said the family received death threats following the incident and were forced to pull their son out of school and move abroad.