By Gilles Castonguay

MILAN--Egyptian businessman Naguib Sawiris has made an offer to invest in Telecom Italia SpA (TI, TIA, TIT.MI), Italy's former telecommunications operator monopoly, according to one person familiar with the situation Sunday.

Speaking on condition of anonymity, the person confirmed a report published Saturday by Corriere della Sera, a leading Italian daily, which said Telecom Italia's board was presented with Mr. Sawaris's expression of interest by the operator's chairman, Franco Bernabe, on Thursday when it met to approve the latest quarterly results.

Although a price wasn't included in the expression of interest, the newspaper said Mr. Sawiris could be interested in investing between four billion euros ($5.1 billion) and EUR5 billion. The newspaper didn't name its sources.

Telecom Italia wasn't immediately available for comment.

An official who represents Mr. Sawiris declined to comment.

Mr. Sawiris is familiar with Italy's telecommunications market.

Through Egypt's Orascom Telecom Holding (ORSTF, ORTE.CE), he ran Wind Telecommunicazioni SpA, one of the country's main mobile phone services operator, before selling most of it to Russia's VimpelCom Ltd. (VIP) in 2011.

Mr. Bernabe has been working on paying down Telecom Italia's enormous debt with the sale of assets like Telecom Italia Media (TIAMY, TME.MI), and he confirmed the aim to reduce it to EUR27.5 billion by the end of the year from EUR29.48 billion on Sept. 30.

He is also considering spinning off the operator's fixed-line network.

In the third quarter, Telecom Italia's net profit fell 13.4% to EUR681 million on lower revenue of EUR7.27 billion because of the weak economy in Italy and a slowdown in Latin America, where the operator has a presence, especially in Brazil.

Telecom Italia is controlled by Telco with a 22.4% stake. Holding company Telco has as its shareholders Italian banks Mediobanca SpA (MDIBY, MB.MI) and Intesa Sanpaolo SpA (ISNPY, ISP.MI), insurer Assicurazioni Generali SpA (G.MI) and Spanish phone company Telefonica SA (TEF, TEF.MC).

--Matt Bradley in Cairo contributed to this article.

Write to Gilles Castonguay at gilles.castonguay@dowjones.com; Twitter: @GRCastonguay

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