The flight BA1481 departed Glasgow on runway 05 then stopped the climb at 8,000 feet before the crew declared an emergency (squawk 7700) about 25 minutes after takeoff.
UPDATE 14:34 GMT
The Airbus A319 (registration G-DBCE) to London Heathrow is now circling South of Glasgow.
UPDATE 14:43 GMT
After 45 mins into the flight, the aircraft is still circling, holding 8,000 feet.
UPDATE 14:59 GMT
The flight BA1481 is returning to GLA Airport.
