Passengers using the Elizabeth line service at Heathrow faced significant disruption on Wednesday morning (February 7).<br /><br />At 8.30am Transport for London (TfL) reported severe delays between Hayes & Harlington and Heathrow Terminals due to an earlier track fault in the airport area. <br /><br />Sadiq Khan is urging Londoners concerned about their health to get checked up as he praised King Charles for "bravely" revealing his cancer diagnosis.