Train passengers have been warned off severe disruption affecting London Euston station during peak rush hour.
Travel to and from London Euston train station has been hit by delays and cancellations on one of the hottest days of the year.
A points failure at Watford Junction has blocked the line used by trains to the Midlands and Manchester.
Trains through Euston may be cancelled, delayed by up to 40 minutes or revised, National Rail warned.
Trains between London Euston and Wolverhampton, Crewe, Manchester Piccadilly and Edinburgh are affected, along with trains to between Birmingham New Street and Crewe.
Service between East Croydon and Watford Junction has also been hit.
Disruption is expected until at least 7pm.
Footage from Euston shows the station packed full of commuters on a day the temperatures in London are set to hit 30C again after the record on Tuesday.
It comes as Tube travel has also been affected across London today.
You could be entitled to delay repay, so it is worth keeping hold of your ticket and making a note of the times to make a claim with the train provider.
Affected Euston trains
These lines have been affected, with disruption expected into the evening.
Avanti West Coast between London Euston and Wolverhampton / Crewe / Manchester Piccadilly / Edinburgh
London Northwestern Railway between London Euston and Tring / Milton Keynes Central / Birmingham New Street / Crewe
Southern between East Croydon and Watford Junction
Have you been affected by the disruption? Please email noora.mykkanen@metro.co.uk.
Latest London news
To get the latest news from the capital visit Metro.co.uk’s London news hub.
This is a developing news story, more to follow soon… Check back shortly for further updates.
Got a story? Get in touch with our news team by emailing us at webnews@metro.co.uk. Or you can submit your videos and pictures here.
For more stories like this, check our news page.
Follow Metro.co.uk on Twitter and Facebook for the latest news updates. You can now also get Metro.co.uk articles sent straight to your device. Sign up for our daily push alerts here.
MORE : This £25 London tour is officially better than ‘life-changing’ bucket list attraction
MORE : I was attacked on the Tube – why did nobody come to help me?
Get your need-to-know
latest news, feel-good stories, analysis and more
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.