US State Dept OKs potential sale of F-15 aircraft upgrade to South Korea, Pentagon says

FILE PHOTO: Air drill as part of the annual Ulchi Freedom Shield joint military exercise between South Korea and U.S.

WASHINGTON (Reuters) - U.S. State Department has approved the potential sale of F-15K aircraft upgrade and related equipment to South Korea for an estimated cost of $6.2 billion, the Pentagon said on Tuesday.

It said the primary contractors will be Boeing Co, RTX Corp and BAE Systems.

(Reporting by Eric Beech; editing by Costas Pitas)