A passenger plane was involved in a near miss with an unidentified object in the skies above Glasgow, according to a report.

Pilots saw a blue and yellow object "loom ahead" as they made their final descent into the city on December 2 last year.

The UK Airprox Board, which investigates near misses, was unable to establish what the crew had seen.

A report by the board said the Airbus A320 was flying in clear skies above Baillieston just before 1pm when the incident occurred. The plane was at an altitude of 4000ft when the pilot and co-pilot reported seeing the object about 100 metres away.

The report said: "The object passed directly beneath before either of the crew had time to take avoiding action or had 'really registered it', although they were both agreed it appeared blue and yellow, or silver, in colour with a small frontal area, but that it was 'bigger than a balloon'."