U.S. Vice President Dick Cheney - who has a history of heart attacks - has left a Washington hospital where he underwent tests Saturday after experiencing shortness of breath. Aides say two tests have found no abnormalities.

As Vice President Cheney and his wife, Lynne, left George Washington University Hospital, he told reporters he feels fine.

A White House spokesman says Mr. Cheney has had a bad cold for the last few days, but doctors wanted to take every precaution for the 63-year-old vice president.

Vice President Cheney has had four heart attacks, including a mild one after the presidential race in November 2000.

He had a pacemaker implanted in 2001, which can administer electric shocks to slow a potentially dangerous racing heartbeat or speed up an excessively slow pulse.

Officials say President Bush has been notified.

Some information for this report provided by AFP and AP.