American billionaire Warren Buffett is donating $10 million to Rambam Hospital in Haifa.

The gift was announced last week by Israeli businessman Eitan Wertheimer during a dinner to celebrate Rambam’s 75th year, the Israeli business daily Globes first reported.

Wertheimer and Buffett are close friends since the 2006 sale of 80 percent of the Wertheimer’s family company Iscar Ltd. to Buffett. In May Buffett’s Berkshire Hathaway company purchased the remaining 20 percent of the company.

Wertheimer is former chairman of the board of KMR Inc., the Rambam Hospital – Medical School and Research Institute.