Gap in service on Metro due to 'lack of available trains'
There is a gap in service on the Metro system this morning due to a "lack of available trains".
The service said it is affecting trains between South Hylton in Sunderland and Newcastle Airport.
Bosses have apologised for the disruption.
The service tweeted: "There is a gap in service to trains between South Hylton and the Airport due to lack of available trains.
"Sorry for any inconvenience caused.
"Please leave extra time for your journey."