Metropolitan Line: Severe delays between Moor Park and Watford due to train cancellations. MINOR DELAYS on the rest of the line due to a trespasser on the track earlier at Dollis Hill. Southbound Metropolitan trains are not stopping at stations between Moor Park and Harrow-On-The-Hill while we fix a signal failure at Rickmansworth. Please change at Harrow-On-The-Hill or Moor Park to complete your journey.