A US Army sergeant who served in Iraq and Afghanistan and is now stationed in Hawaii has been arrested on charges of providing material support to Islamic State extremists, the Federal Bureau of Investigation said on Monday.
The soldier was arrested on charges of provding material support to Islamic State extremists.
He's been under investigation by the Army and FBI for more than a year.
Now stationed in Hawaii, the solider was taken into custody on Saturday, according to an FBI statement.
A criminal complaint filed in US District Court in Honolulu said Kang had sworn allegiance to the militant group that seized swaths of territory in Syria and Iraq for a self-proclaimed caliphate.
The FBI says he is also accused of attempting to provide military documents and training to IS.
Federal authorities believe that the air traffic control specialist was a "lone actor".
According to his army record, Kang served three overseas tours of duty in South Korea, Iraq and Afghanistan.