Authorities say two commercial airline pilots have been arrested at Glasgow Airport on suspicion of being under the influence of alcohol, shortly before they were due to take off on a trans-Atlantic flight.

Canadian airline Air Transat says the two crew members were arrested before a Glasgow to Toronto flight on Monday.

Police Scotland says the men, aged 37 and 39, are due to appear in court Tuesday, charged with being "impaired through alcohol."

The airline says passengers have been put up in hotels and will be flown to Toronto on Tuesday.

Air Transat runs charter and scheduled flights between Canada and several European and Caribbean destinations. The airline says it will "await the results of the investigation and judicial proceedings" before commenting further.