Relatives and survivors of the September 11th attacks are angry at the Justice Department for refusing to release information on Saudi Arabia's role in the attack, Daily Mail reported. 

A groups of survivors walked out of Manhattan Federal Court Friday upset at the government's refusal to name a key Saudi official who has been investigated by the FBI.

Relatives of the victims and survivors of the attack expressed their indignation at the government’s refusal.

They require the publication of this information for 16 years.

According to the first lawsuit of the victims, it was assumed that Saudi Arabia assisted in coordinating the activities of the al-Qaida terrorist organization, which carried out an attack on New York.

According to the prosecution, a number of Saudi officials supported terrorists before the attacks.

Three years after the terrorist attack, the FBI completed an investigation, which resulted in a 16-page report remained secret to the public to this day.