Search continues for boy thought to be in runaway balloon

Colorado authorities are still searching for a missing 6-year-old boy thought to have taken off from his home in an experimental balloon

The balloon crash landed in a field near Fort Collins Wednesday afternoon

It had been trailed by rescuers and news crews for nearly two hours after lifting off from the backyard of the home of Richard Heene

Heene and his family were building the balloon as a family project

The family told authorities that 6-year-old Falcon Heene had slipped on board just before the craft lifted off

The balloon was not designed to hold passengers and reached altitudes greater than 6 000 feet during its flight