Budget carrier Jet2 says it has asked French aviation officials for clarification as to why a flight from Spain to Britain was apparently tracked by military aircraft.

Passengers on flight LS1204 from Malaga to Birmingham say they saw the military plane shadowing the aircraft for about 15 minutes Friday.

The airline says in a statement Saturday that it was "awaiting clarification from the French air traffic authorities, as to why a military aircraft was apparently tracking our aircraft."

One passenger, Sarah Hatfield from Quarry Bank in the West Midlands of England, says the fighter jet "was so close I could read the writing on its tail fin."