Tyco International's 2009 first quarter revenues dipped slightly to $4.4 billion the company said, blaming the continuing strength of the dollar.

"As we expected, our results this quarter were impacted by the strengthening of the U.S. dollar against foreign currencies, but our overall revenue came in at the high end of our expectations," said Tyco Chairman and Chief Executive Officer Ed Breen. "In this challenging economy, we are focused on both reducing our cost structure and positioning our businesses for long-term growth. At the same time, our strong and improving balance sheet is an important asset for our company in the current environment."

Operating income fell 6% to $231 million compared with 2007's first quarter.

Operating margin was stable at 12.9%.

Full results details are here