I wonder who is heading on a steady course of 280 degrees True along the Mediterranean in their Boeing Business Jet from the Texan/Saudi operator MidEast Jet. If they started from Egypt, given the time they came into range and their air speed, that would fit with the BBC reporting that prominent persons had left the country at 2117 GMT, quoting Al-Jazeera (although I was watching it and I didn’t see this).
Whoever they are, they’re about 15 minutes from Tunisia.