Although the passengers blamed the BA representatives as the British Airways flight from Gatwick to Malaga was diverted to Barcelona tonight after ‘fumes were detected in the cabin. However one of the Passengers claimed this came from the British Airways A320’s Engine.
According to Alicia Botha’s Tweet, “BA2716 diverted to Barcelona and not a single BA representative to assist. We wander the terminal on our own initiative. Just. Wow”
Where are the Fumes coming from actually?
One of the passengers pointed out that this came directly from the British Airways Engine.
Flight Rada Record

According to Flight data from Flight Radar, which showed the Airbus A320 left Gatwick at around 4 pm before it was diverted to Barcelona at 2.55 pm, nearly 500 miles away.
The painful thing from the whole scenario is the behavior of the BA staff with respect to the action. which was termed inappropriate as none of the BA staff came to assist the passengers.
Source:
https://www.flymags.com