Two of the four multicolored helium balloons that lifted off shortly after dawn Sunday in the Gordon Bennett balloon distance race dropped out before nightfall, organizers said.

As of late Sunday night, only the Rosie O'Grady, the three-time winning balloon piloted by retired U.S. Air Force Col. Joe Kittinger of Orlando, Fla., with co-pilot Sherry Reed; and Jura, piloted by Karl Spenger of Switzerland with co-pilot Ronald Schuler, were still in the air, race officials said.Both balloons were about 300 miles from the starting point.

Rosie O'Grady reported at 6 p.m. that it was floating at about 12,000 feet near Page, Ariz. An American Airlines pilot made the last report on Jura, saying it was also at 12,000 feet over the Grand Canyon and headed for Lake Powell near Page.