NEW YORK (Kyodo) The chief executive officer of Delta Air Lines Inc. says the largest U.S. airline is ready to team up with a third party, such as an investment fund, to increase its proposed investment in Japan Airlines Corp.

"We are prepared to work with constituencies if there is a need or desire to use our agreement and our investment to increase participation by others," Richard Anderson said Wednesday.

Anderson said, however, that whether to bring in a third party is up to JAL, its creditors and a Japanese government-backed turnaround body that is helping the cash-strapped carrier.