Berkshire Hathaway's Operating Profit Rises To $2.67 Billion

May 4 (Reuters) - Berkshire Hathaway Inc , the insurance and investment company controlled by Warren Buffett, on Friday posted a 67 percent increase in operating profit, helped by improved performance in insurance underwriting and its non-insurance businesses.

First-quarter operating profit rose to $2.67 billion, or $1,615 per Class A share, from $1.59 billion, or $966 per share, a year earlier. Net income attributable to Berkshire shareholders more than doubled to $3.25 billion, or $1,966 per share, from $1.51 billion, or $917 per share, last year.

Berkshire posted a $54 million insurance underwriting profit in the quarter. That compared with a year-earlier $821 million loss, when results were hurt by costs for earthquakes in Japan and New Zealand and floods and a cyclone in Australia.