The hot weather is causing problems on the UK's railways, with many passengers being left stranded in baking hot stations this week.

On Monday evening (July 15th), thousands of commuters were stuck in London's Waterloo station, as train services were cancelled because of buckled tracks.

Network Rail said some steel rails became warped after encountering temperatures as high as 50 degrees Celsius.

A spokeswoman for South West Trains-Network Rail Alliance said at the time: "Safety is our absolute priority. We have no choice but to make sure these repairs are carried out before we can restore train services on these lines."

With the Met Office predicting the ongoing heatwave to continue until August, rail chiefs will be concerned about further delays.

Transport for London said it is working hard to ensure its Tube, train and bus services are air conditioned. The temperature on all carriages on the Metropolitan line is now regulated, while plans are in place to roll out air conditioned trains on the Hammersmith & City and Circle lines throughout the summer.