UPDATE 1-Berkshire Hathaway profit up 10 pct amid railroad gains
May 01, 2015 at 17:49 PM EDT
OMAHA, Neb., May 1 (Reuters) - Warren Buffett's Berkshire Hathaway Inc on Friday said first-quarter profit rose 10 percent, and operating results easily beat forecasts, boosted by its railroad and insurance businesses and gains from derivatives.