Transport for London (TfL) will be handing out FREE bottles of water to commuters using the London Underground for the third year in a row.

As a mini heatwave hits the capital , Danone has given TfL 250,000 bottles of water to hand out at selected stations, starting on July 19 at Farringdon Station.

The giveaway is part of TfL's ongoing Travel Better London campaign, which aims to raise awareness of how passengers can help to reduce delays and improve journeys for everyone by making small changes which can prevent people being taken ill on trains.

It also coincides with the hot weather that is forecast for London for the coming week.

The free bottles of water are also part of London Underground's plans to try and cool the network, which have included air conditioned trains on the Metropolitan, Circle, Hammersmith and City and District lines, upgraded station ventilation and portable fans installed in ticket and concourse areas.

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Mark Evers, director of customer experience for the London Underground, said: "Through our partnership with Danone we want to encourage customers to carry water when they travel during the summer, which can help prevent people being taken ill on trains and reduce delays.

"This partnership complements our ongoing investment in cooling the Tube, which includes improving ventilation systems at our stations and introducing new air conditioned trains, which will serve 40% of the underground network by the end of this year."