DECATUR, Ill. — The foundation of billionaire investor Warren Buffett's son plans to invest $30 million in a central Illinois campus of facilities to help people with drug addiction and bring together social services.

The (Decatur) Herald and Review reports Macon County Sheriff Howard Buffett announced plans Wednesday in Decatur. Crossing Healthcare, which serves primarily low- and moderate-income residents, will own four new facilities including a residential rehabilitation building and outpatient treatment center.

Howard Buffett says the investment "will address the health of our community at multiple levels."

Howard Buffett was appointed sheriff in September and was an executive at Archer Daniels Midland. Warren Buffett has helped the Howard G. Buffett Foundation by giving his Berkshire Hathaway stock. The foundation has donated millions of dollars to projects in central Illinois.