AS temperatures are set to soar as high as 35C this week, there are fears that the heat could disrupt rail services.

Commuters are advised to check their journeys before travelling and have been warned that there may be disruption caused by the hot weather.

The heat is predicted to be so intense that Network Rail has imposed a speed restriction on some services today to stop the rails from buckling.

The mercury is predicted to hit 30C (86F) today and 35C (95F) on Wednesday, making Britain hotter than Brazil's Rio de Janeiro and Bucharest in Romania.

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The heatwave is being caused by a warm front and tropical continental air mass from Europe pushing across the country, bringing high temperatures and humidity.