Fake news (unless you are President Trump) is when someone knowingly and deliberately posts something that is completely untrue on social media, usually because they can earn money from advertisers. For example, when there was a post that Hillary Clinton was running a paedophile group from a restaurant or café that resulted in an innocent member of the public being shot. (I think that came from a group of smart but irresponsible teenagers somewhere in Middle Europe, maybe Greece.)
Apparently, there has been, according to reliable sources, that an emergency meeting has been called at Buck House. Of course, speculation is rife about what that may mean. Of course, it could mean just about anything.
It is unlikely that someone, an important someone, has died without a public announcement because that always happens.
If it is important – or even mildly interesting – an announcement will be made.