蜜芽传媒

Transport for London (TfL) says it is removing about 4,000 pieces of graffiti per day on the Central and Bakerloo Tube lines.

It says it is dealing with a huge increase in vandalism on the trains as well as challenges in getting the trains cleaned.

TfL says it has a reduced number of trains on the Central line as some are being upgraded, five at a time. The Bakerloo line has the oldest fleet, and hence it has fewer trains.

蜜芽传媒 London's Transport and Environment Correspondent Tom Edwards has the story.