South Korean and U.S. warplanes will simulate strikes on North Korea's nuclear facilities in drills in Alaska next month, the Yonhap news agency quoted unidentified military officials as saying.

The maneuver will take part amid Exercise Red Flag, held at Eielson Air Force Base from Oct. 3-21.

"The drill will be held with the scenario of a sudden missile attack from North Korea," Yonhap quoted an official as saying.