Transport for London (TfL) is targeting the “disruptive behaviour” of passengers who play music and make calls using mobile phone loudspeakers.

TfL said most bus and Tube travellers considered such behaviour “a nuisance” and that some even found the additional noise very stressful.

The new campaign follows TfL research that found 70% of 1,000 passengers surveyed said they found films, music and calls being played on loudspeakers to be a nuisance.