Doubtful.
But very possibly a bomb set by Chinese agents, which will be blamed on Uyghurs so as to serve as a pretext while the world is occupied with the Ukraine invasion.
The Uygurs are many things and I’m sure not above terrorism (although I don’t know of any), but they won’t have the connections to pull this off.
The CDC says that this appears to be Covid-19 related and should be counted in local statistics as the deadly virus cannot be ruled out without knowledge of the vaccination status of those on board.