SEOUL, March 25 (Reuters) - South Korean President Lee

Jae Myung said on Wednesday his country will invest in

cutting-edge aircraft technologies for national defence, at an

event celebrating the first delivery of homegrown fighter jet

KF-21.

South Korea will swiftly begin developing engines,

components and raw materials for its high-tech aircraft

industry, Lee said.

The jet will be delivered to South Korea's Air Force and

deployed for operations in September, the presidential office

said in a statement.

Earlier this month, state-run Korea Aerospace Industries

said it was in talks with Indonesia on potential

fighter jet sales, but so far no decisions have been made.

Indonesian President Prabowo Subianto is scheduled to make a

state visit to South Korea from March 31 to April 2.

President Lee told Prabowo in November that he hoped the two

countries would continue to cooperate on military security,

including the development of fighter jets.