An active duty US soldier based in Hawaii has been arrested by the FBI on terrorism charges related to possible links with Isis.

An FBI spokesperson told Associated Press that agents had arrested 34-year-old Ikaika Kang on Saturday (8 July). Kang is scheduled to appear in federal court.

The soldier was reportedly with the 25th Infantry Division at Schofield Barracks in the island state's capital of Honolulu.

Hawaii News Now reported that the soldier was a graduate of the local Henry J Kaiser High School and had been investigated for around a year. The local news station said that Kang had been arrested at his apartment home.

A statement from the US Army, reported by NBC, said that Kang has allegedly pledged alliegance to the Islamic State group.

No other details have yet been made available but more is expected to come out as the FBI files criminal charges.

The Associated Press reported that Kang enlisted in the Army just a few months after 9/11 in 2001 and served for just under a year in Iraq and around nine months in Afghanistan. Kang was an air traffic control operator and ranked sergeant first class.