MILAN, Dec 22 (Reuters) - The CEO of Italy's Leonardo , which is considering the sale of two of its units, said he saw a proposal from Franco-German consortium KMW+Nexter Defence Systems (KNDS) as interesting, but added nothing had been decided over the sale.

KNDS and Italian shipbuilder Fincantieri have both expressed their interest in buying Leonardo's OTO Melara and Wass units, sources have said.

The possibility of a foreign consortium buying the two units has raised eyebrows in Italian political circles.

Speaking to a parliamentary committee, Leonardo Chief Executive Alessandro Profumo on Wednesday said the group was waiting for the two potential buyers to present a detailed offer for the units before taking a decision.

"KNDS is potentially an interesting partner because it has a role in the 'Main battle tank' (programme) and does not compete with Leonardo on electronics," Profumo said, adding that Italy would benefit from being part of the so-called Main Ground Combat System (MGCS) tank project.

"We have received two expressions of interests and today we asked prospective buyers to present non-binding offers," he said, adding the group would make a decision considering several aspects including the price offered and the possibility of international cooperation.

Profumo denied media rumours regarding tensions with Fincantieri over the sale of the two units.

"We are not arguing with Fincantieri, we are not arguing with anyone," Profumo said.

German defence contractor Rheinmetall could also join the race to acquire Leonardo's assets, through a partnership with Fincantieri.

Rheinmetall expressed an informal interest for Oto Melara to Italy's government, "in collaboration" with Fincantieri, daily Il Sole 24 Ore reported on Tuesday.

Rheinmetall Italy's head Alessandro Ercolani on Wednesday told a parliamentary committee that the German group was ready to evaluate a possible cooperation with Oto Melara.

In a hearing following Profumo's, Ercolani added that the group is ready to help Oto Melara grow in the terrestrial field, making of it an hub of excellence.

However he did not explain how this "cooperation" would work and did not directly mention a possible acquisition of Leonardo's unit. (Reporting by Francesca Landini and Elisa Anzolin; editing by David Evans)