Sadiq Khan has hit back at Boris Johnson’s criticism of the planned expansion of London’s ultra-low emissions zone.<br /><br />The Ulez is due to be expanded to cover the whole of the capital from 29 August to boost air quality, with a £12.50 daily fee for vehicles not meeting minimum standards.<br /><br />Mr Khan said he will take “no lectures” from his predecessor as London mayor, Mr Johnson, who in a video posted on Twitter on Wednesday, accused Mr Khan of expanding the scheme to “rake in money” from motorists.<br /><br />Click here to sign up for our newsletters.