Watch: Stag running along Glenfinnan Viaduct holds up train

A ScotRail conductor spotted a stag running along the famous Glenfinnan Viaduct.

Footage shows the animal taking its time as it trots along the tracks.

The viaduct and a steam train that operates on its railway line both feature in the Harry Potter movies.

Thousands of Potter fans and railway enthusiasts visit the viaduct every year.