7 February 2016, 13:34 GMT
WASHINGTON (Sputnik) — On Sunday, North Korea fired a long-range rocket to allegedly place a satellite into orbit, defying UN Security Council resolutions. US President Barack Obama announced that Washington was consulting with Seoul on possibility to expand missile defenses in the Pacific region to counter any potential strike from North Korea.
"The formal talks have not begun but we do expect they will begin in the next few days," Cook said when asked about US-Korean discussions on the THAAD deployment.
Cook added that the system could be deployed to South Korea at the earliest possible moment.
