"He's in contact with his senior staff and has full access to required secure communications capabilities and continues to monitor DOD's day-to-day operations worldwide," Pentagon press secretary Major General Pat Ryder said in a statement.

Austin, 70, was admitted to Walter Reed National Military Medical Center in Maryland on Dec. 22 to treat prostate cancer. He returned to the hospital on Jan. 1 due to complications including a urinary tract infection and has remained there ever since.

(Reporting by Ismail Shakil in Ottawa; Editing by Marguerita Choy)