Commuters travelling into one f the country's busiest railway stations face a second day of disruptions to their journeys.

South West Trains advised thousands of customers not to use its services into London on Wednesday after problems caused by a points failure and a passenger train derailment caused major problems on the line into Waterloo yesterday.

The incidents affected services into Britain's busiest railway station, which is undergoing huge improvement works that have temporarily closed more than half its platforms.

It came on the day it was announced that season ticket prices would rise by 3.6 per cent, after the Retail Price Index measure of inflation, which the Government uses to calculate the rise in regulated rail fares, rose by that amount in July, from 3.5per cent in June.

In a statement on its website on Tuesday, SWT said: "Trains are unable to use platforms one to 13 at London Waterloo and this reduction in available platforms means that many services will need to terminate before London Waterloo and many services will start away from London Waterloo.

"Most trains are experiencing severe delays and are subject to short notice alterations.

"Disruption to services is expected to persist until the end of service Today, August 16.

"We now strongly advise customers not to travel on our network today or tomorrow."

Train services running to and from Waterloo will be cancelled, delayed by up to 15 minutes or revised.