That was only the 1st one which China owned up to. What about the other 3 objects that had fighters scrambled from both the US and Canada and of which no photos

That was only the 1st one which China owned up to. What about the other 3 objects that had fighters scrambled from both the US and Canada and of which no photos exist and no-one has claimed ownership of? One object was blamed on a hobby balloon club and I have questions about it because usually winds move west to east and their balloon allegedly travelled east to west. In any case, how about the other 2 that weren't blamed on anyone, especially the one over Alaska? Nobody can answer the questions because it's all classified "National Security".