CRIME

Prosecutors: 2 siblings of Chicago-area man who wanted to join Islamic State also arrested

  • This undated passport photo provided by the U.S. attorney's office and presented as evidence at a detention hearing at federal court in Chicago, Monday, Nov. 3, 2014, shows Mohammed Hamzah Khan. U.S. Magistrate Judge Susan Cox judge said Monday that Khan, a suburban Chicago man accused of seeking to join Islamic State militants in Syria, will remain behind bars pending trial. Prosecutors say agents arrested Khan on Oct. 4, 2104 at O'Hare International Airport as he tried to board a flight to Turkey, which borders Syria. (AP Photo/U.S. attorney’s office)

    This undated passport photo provided by the U.S. attorney's office and presented as evidence at a detention hearing at federal court in Chicago, Monday, Nov. 3, 2014, shows Mohammed Hamzah Khan. U.S. Magistrate Judge Susan Cox judge said Monday that Khan, a suburban Chicago man accused of seeking to join Islamic State militants in Syria, will remain behind bars pending trial. Prosecutors say agents arrested Khan on Oct. 4, 2104 at O'Hare International Airport as he tried to board a flight to Turkey, which borders Syria. (AP Photo/U.S. attorney’s office)  (The Associated Press)

  • Thomas Durkin, defense attorney for Mohammed Hamzah Khan, speaks with reporters following a detention hearing for his client at the federal building in Chicago, Monday, Nov. 3, 2014. U.S. Magistrate Judge Susan Cox said Monday that Khan, a suburban Chicago man who is accused of seeking to join Islamic State militants in Syria will remain behind bars pending trial. Prosecutors say agents arrested Khan on Oct. 4 at O'Hare International Airport as he tried to board a flight to Turkey, which borders Syria. Khan's father, Shafi Khan, is seen standing next to Durkin. (AP Photo)

    Thomas Durkin, defense attorney for Mohammed Hamzah Khan, speaks with reporters following a detention hearing for his client at the federal building in Chicago, Monday, Nov. 3, 2014. U.S. Magistrate Judge Susan Cox said Monday that Khan, a suburban Chicago man who is accused of seeking to join Islamic State militants in Syria will remain behind bars pending trial. Prosecutors say agents arrested Khan on Oct. 4 at O'Hare International Airport as he tried to board a flight to Turkey, which borders Syria. Khan's father, Shafi Khan, is seen standing next to Durkin. (AP Photo)  (The Associated Press)

Prosecutors say the younger siblings of a suburban Chicago man charged with seeking to join Islamic State militants were arrested with their brother.

Prosecutors revealed the arrests of Mohammed Hamzah Khan's siblings during a hearing Monday in Chicago federal court. They were arrested along with the 19-year-old Khan last month at O'Hare International Airport.

The siblings are ages 16 and 17. They haven't been charged in the case.

Attorneys didn't name the minors but said that they, like their brother, had expressed a passion for committing violence. They said the three not only had "barbaric rhetoric," but intended to act on it.

Khan is charged with seeking to provide material support to a foreign terrorist group. He was arrested trying to board a flight to Turkey.