BISMARCK, N.D. — North Dakota Gov. Jack Dalrymple has ordered that flags on state properties be flown at half-staff Sunday to honor those killed in the Sept. 11, 2001, terrorist attacks.

Dalrymple on Friday asked that the flags remain at half-staff from sunrise to sunset Sunday. Nearly 3,000 people lost their lives in the attacks.

Dalrymple is also encouraging North Dakota residents to display the flags at their homes at half-staff.

Sept. 11 has been designated Patriot Day and a Day of Service and Remembrance.