Rail passengers are being advised to double-check their journey before they travel as major Network Rail improvement projects continue.

Until Thursday (June 7), and on Saturday and Sunday (June 9 and 10), Network Rail will continue the electrification of the railway between Reading and Newbury.

Long-distance services from London Paddington to Somerset, Devon and Cornwall will continue to operate but will be diverted, adding up to 50 minutes to journey times.

Some train departure times will also be changed, and passengers are advised to check beforehand.

Flood resilience work at Cowley Bridge, near Exeter, will also affect rail services between Exeter St Davids and Tiverton Parkway and on the Tarka line to Barnstaple the following week, from June 12 to 14.

GWR services will operate:

One train every two hours will operate between London Paddington and Exeter St Davids, Plymouth and Penzance which will be diverted via Yeovil and Honiton; not calling at Taunton and Tiverton Parkway. Journey times will be extended by up to 50 minutes.

One train every two hours will continue to operate between London Paddington, Taunton and Tiverton Parkway, with buses through to Exeter for stations through to Penzance.

Exeter St Davids to Penzance services will continue to operate but there will be some changes to the timetable.

Services to Bristol and Cardiff will start from Tiverton Parkway or Taunton

Rail replacement buses will operate between Exeter St Davids and Barnstaple.

CrossCountry services from the North of England will terminate at Taunton and from Plymouth and Penzance will terminate at Exeter St Davids.

South Western Railway services will be retimed, with some terminating at Yeovil Junction for a connecting GWR service continuing to Exeter.