Question to the Department for Transport:

To ask the Secretary of State for Transport, if he will ask all train operating companies to ensure a sufficient supply of free drinking water for staff and passengers onboard services operating during the hot weather warning, including for emergency use.

The safety of all passengers and rail staff remains our top priority. The rail industry is working to ensure mitigations are in place to ensure both passenger and staff welfare.

Extensive passenger communications have been issued, with advice to carry water and to only travel if necessary on the hottest days