There was security footage showing the truck dislodged it.
They didn’t come right out and say that’s what happened, only that the footage “suggests” it, and that the truck “appears to” dislodge the cover. Anyway, I’m not saying that that isn’t what happened, only that I cannot see how a truck could move a properly seated manhole cover by driving over it. If someone can explain how it could work unless the cover was already at least slightly out of place, I’d be grateful.