Official phrasing
"a drone was successfully intercepted" according to HMP.
"it crashed and was found" according to the press.
If the press are correct, I hope that this is not the kind of "successful interception" relied on by other government services in these days of limited resources, for example I'd hate to think that a successful interception of an enemy aircraft by the RAF relied entirely on johnny foreigner being a poor pilot and steering into the ground for no good reason.