Qatar Airways Boeing 777-3DZER A7-BAB operating the Sao Paulo – Doha sector of the delayed QR774 Buenos Aires – Sao Paulo – Doha (depart Buenos Aires 6th May) diverted via Athens in the early hours of this morning. It is not clear whether this was due to fuel, crew or a medical emergency. Since the closure of Egyptian and Saudi Arabian airspace to Qatar Airways this flight has been routing north across Mauritania, Algeria, and Tunisia before heading acrosss Turkey and Iran to Doha.