Glasgow residents were left scratching their heads as the skies were shattered by the sound of a huge, low-flying RAF military plane doing loops of the city late last night.
The Airbus A400M aircraft could be heard by locals as it appeared to circle the city, while performing various take-off and landing manoeuvres at Glasgow Airport.
Flight tracking service Flightradar24 showed the plane flew repeated loops above the north and south of the River Clyde before descending to an altitude of at least 600 feet at the airport - and then taking off again.