A homemade hot air balloon thought to have a 6-year-old Colorado boy trapped inside has landed -- but the boy was nowhere to be found.

News reports indicate local authorities are frantically searching for the child on the ground, including in the neighborhood where he lives. Reports initially indicated the boy may have climbed into a box that was attached to the balloon that may have fallen off, but now others are reporting that there may have not been a basket on the craft at all.

The AP reports the balloon was owned by the boy's parents and tethered behind the family's home. The boy and his brother were reportedly playing in the yard where the balloon was tethered when the older child says he saw his younger brother go into a compartment at the bottom of the balloon and fly away. The aircraft landed roughly two hours later -- but he was not inside.

The boy, reportedly identified as 6-year-old Falcon Heene, starred on ABC's "Wife Swap" with his family. His father, Richard, is a storm chaser who, along with his family, is said to "live on the edge."

Balloon Boy and the Heene Family