Japan Airlines Corp is seeking a capital injection of about 50 billion yen ($550 million) from Delta Air Lines, as well as several billion yen from Air France-KLM, Japan's national broadcaster NHK reported on Saturday.

A source familiar with JAL's plans told Reuters on Friday Delta, the world's largest carrier, was in talks to take a minority stake in the struggling Japanese carrier as it seeks to expand its international footprint.

NHK said without citing sources that top executives at JAL were in the United States for negotiations to agree an amount for Delta's aid.

Separately, the Nikkei business daily reported on Saturday that Delta had proposed in late August a capital injection of 30-50 billion yen into JAL.

The paper cited an unnamed senior official at JAL as saying, however, that a tie-up with Delta would be difficult because the Japanese carrier has a partnership with AMR Corp's American through the Oneworld alliance. JAL may look into asking American to invest in it, the Nikkei said.

JAL posted a 99 billion yen ($1.1 billion) net loss for the April-June quarter and is headed for its second-straight annual loss this business year to March, hit by a downturn in travel and as it struggles to rein in costs.

It secured a 100 billion yen government-backed loan in June and is widely expected to ask for more financial assistance to help it restructure. JAL is due to submit a restructuring plan by the end of the month.

($1 = 90.69 Yen)

(Reporting by Chang-Ran Kim; Editing by Sugita Katyal)

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