Confirmed on the BBC news at 1724Z. All BA flights from Terminal 1 at LHR have been cancelled for this evening.
No reason supplied but I bet things are getting a little heated among the passengers.
Since this does not appear to be a security issue eg the other company's are continuing to operate from T1 and other BA flights from T4 appear to be continuing I would guess someone has upset the staff......A tug driver with a saussage perhaps?
