A child was killed and another badly injured. I found a video of the incident.https://www.rainews.it/video/2023/09/un ... html?nxtep
The team were to carry out a rehearsal for the show on Sunday. They had taken off and are in two groups of four and five, the far right of the group of five suddenly drops away, looks like sudden loss of power, engine failure or bird-strike perhaps ? Pilot ejected, but the aircraft exploded on impact, then crashed through a fence into a road.
UPDATE- The aircraft wreckage hit a car just outside, passing the perimeter fence, causing the fatality and injuries to a family.https://aviation-safety.net/wikibase/345619