Jaguar Land Rover has threatened to sue National Rail over its use of 'rover' and 'ranger' on its tickets.

The Indian-owned car manufacturer has handed the Rail Delivery Group, which is responsible for the National Rail website, a cease and desist letter.

In the correspondence, they have instructed the company to stop using the terms 'ranger and rover' for its tickets, claiming it infringed on the 'Range Rover' trademark.

Now, in a memo seen by The Telegraph, train firms are being instructed to remove any reference to 'ranger and rover' on their website.

It confirmed the carmaker had objected to the use of both terms, and was considering getting in touch with rail firms who were using the phrase.