A report by an inquiry panel blames pilot error for the collision of three Italian jets that killed 69 people at the U.S. Ramstein Air Base.

The three Italian stunt jets collided during an air show Aug. 28, and one of the jets plunged into the crowd and exploded in flames. All three pilots were among the dead.The collision occurred as the pilot referred to in the report as the "solo" pilot was trying to fly through a heart-shaped formation made by the other two planes.

"The cause of the mid-air collision . . . has been determined to have been human error by the solo pilot," the report said.