A stormy weekend has meant that many lines are blocked by floods or fallen trees today.

Northampton station is flooded after the River Nene burst its banks, and no trains are running on the loop of the West Coast Main Line which serves Northampton and Long Buckby.

Network Rail has warned of ‘extensive flooding’ blocking the line at Northampton, and flooded streets also mean that no replacement buses can run.

Main line services can still run via Kilsby, but trains are running late and services from Milton Keynes Central and stations south are limited because of the loss of trains from Northampton.

Carole Bayliss, strategy director for Network Rail’s West Coast South route apologised to passengers, and warned that the floodwater ‘will mean major disruption on the West Coast Main Line today’.

She added: ‘While our teams monitor water levels and wait until it’s safe to fully assess the extent of flood damage to the railway, we're urging passengers to check with National Rail Enquiries before travelling.’

The rain and winds of Storm Bert over the weekend have also blocked the railway in many other places.

There are speed restrictions on a number of Scottish lines, including Aberdeen and Inverness, Ayr and Edinburgh, Carlisle and Glasgow Central, Edinburgh and Perth, and Glasgow Queen Street to Cumbernauld, Oban and Mallaig. An oil spill at Inverness has also affected trains from there to the central belt, and replacement buses are running between Inverness and Perth.

In north west England, no trains are running between Lancaster and Barrow-in-Furness because the line is flooded. 

Fallen trees between Broxbourne and Audley End have damaged overhead power lines, and all services have been suspended between Harlow Town, Stansted Airport and Cambridge. Floods are also delaying trains between Banbury and Bicester North.

Southern has warned of cancellations, with fewer trains than usual running on several routes, including Havant and Southampton, Portsmouth and Barnham, Tulse Hill and London Bridge and also between Sutton and London Victoria.

Floods are affecting several lines in Wales and the borders. There are no trains between Pontypridd and Treherbert, Aberdare or Merthyr Tydfil, or between Llanhilleth and Ebbw Vale Town.

A landslip between Hereford and Abergavenny has blocked the line, and flooding at Lydney means that trains between Lydney and Cheltenham Spa may be delayed or cancelled.

Trains cannot run between Cheltenham Spa, Stroud and Swindon, while there is severe disruption between London and South Wales. GWR can only run shuttle services between London and Swindon, and between Bristol Temple Meads and South Wales.  It is proving difficult to provide alternative road services on some routes, and passengers are being advised to postpone their journeys until tomorrow at least if they can.

In south west England, there are no trains running between Bristol Temple Meads and Exeter St David’s, or between Newton Abbot and Plymouth, again because of flooding. Floods or fallen trees have blocked the lines to Okehampton, Barnstaple, Gunnislake and Looe, while there are also no trains on the Newquay line because of scheduled engineering work.