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.

"For the safety of my family, I have to go back to Qatar, because right now it's not very safe for my family or for anyone who's a minority," Ahmed said during a news conference Monday. "I can't walk out of the house without being covered up because I might get shot because that happens here."

The family had demanded $15 million from the school district in November. But a school spokesperson said the district did not violate Mohamed's rights or suspect him to be more likely of bringing a bomb to school because he was Muslim. It is unknown what financial requests the Mohameds have made of the school in the new suit.

Mohamed and his family are back in the U.S. this summer to visit family and friends, despite Mohamed's saying the U.S. is not safe for his family. He will return to Qatar for school in the fall.