Trains between Glasgow and London have been disrupted by damage to overhead electric lines caused by a fallen tree in southern Scotland.

Avanti West Coast said all lines were blocked between Lockerbie and Carstairs and services would be affected until 14:00. Some services scheduled to start in Glasgow now starting in Preston, Lancashire, and experiencing delays of several hours.

Passengers waiting overnight on the Caledonian Sleeper service from Glasgow Central were told a tree had come down on the line.

Ticket holders have been advised that they can travel on alternative services on the east coast rail line for no extra cost or get a refund.

A statement from Avanti West Coast said: “Due to damage to the overhead electric wires between Lockerbie and Carstairs, all lines are blocked.

“Train services running through these stations may be cancelled or delayed. Please check your journey.”