A Halloween bus advert which features a zombie covered in blood has been criticised for being too scary. The Tulleys Farm Shocktober Fest banner appears on the side of more than 100 buses operating from south London into Sussex.
The Advertising Standards Authority is looking at whether any rules have been broken after receiving several complaints.
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Official readings are recorded three metres in the air but a study found levels of nitrogen dioxide (NO2) were higher at pushchair level.
Tubes, trains, trams, buses, cable cars, river buses, taxis and going by foot - your guide to getting around during the strike.
Union officials rejected a revised offer from Underground managers during a meeting at the conciliation service ACAS this afternoon.