A U.S. air force judge on Wednesday ordered a June 2028 trial accused 9/11 attacks mastermind Khalid Sheikh Mohammed, along with three co-defendants, the latest development in a long-running legal saga since Mohammed's arrest in 2003.

The self-proclaimed "mastermind" of the 9/11 attacks, Khalid Sheikh Mohammed, will stand trial in June 2028, a military judge ruled Wednesday.

Khalid Sheikh Mohammed, the man accused of masterminding the September 11, 2001 terrorist attacks will finally face trial in 2028, a judge declared on Wednesday.

The former al Qaeda propaganda chief has been held at the Guantanamo Bay detention camp in Cuba for 20 years.