Metropolitan Line: No service between Baker Street and Aldgate due to a collapsed drain on the track at Baker Street. SEVERE DELAYS between Harrow-on-the-Hill to Baker Street. Tickets being accepted on London Buses and Chiltern railway services. MINOR DELAYS between Moor Park and Chesham due to train cancellation. The next southbound train from Chesham at 09:08. GOOD SERVICE on the rest of the line.