BREAKING British Airways #BA632 from Heathrow to Athen is declaring an emergency. Live:

UPDATE Confirmation #BA632 safely landed runway 27L at Heathrow.

UPDATE British Airways #BA632 is on approach to runway 27L.

UPDATE British Airways #BA632 is returning to LHR with one engine shut down due to fuel leak.

UPDATE British Airways #BA632 to Athen is returning to Heathrow.