The Saudi defence ministry agreed to buy 10 batteries of a mid-range, medium-altitude interception system called Cheongung M-SAM II that can cope with ballistic missile and aircraft attacks, the South Korean ministry said.

The details of the deal were disclosed at the sidelines of the World Defense Show in Riyadh.

A spokesperson for LIG Nex1 could not be reached outside office hours.

(Reporting by Joyce Lee and Josh Smith; Editinmg by Andrew Heavens)