FZ, have just issued a FlightCrewNotice to inform us that overflights of Yemen are now stopped until further notice.
A large no fly zone has been imposed, by Saudi Arabia, in the north of Yemen, and in conjunction with that the Yemen FIR is now also out of bounds.
The only FZ flight directly effected is its 4x per week (FZ603) service to Aden. That said, with having to fly around the no-fly zone, flights out of the UAE to East & Central Africa will necessarily be longer and, in some instances, might rub up against the FDP limits for an 'out & back' in the same duty period, and / or that some will likely require an ETOPS dispatch and a flight out over the Indian Ocean.