Rail passengers have faced disruption due to damage to overhead power cables near one of London's busiest stations.
Trains between Paddington, Heathrow, Oxford and Maidenhead were severely disrupted due to wires collapsing between Paddington and Hayes and Harlington.
Some people got off stranded trains and on to the tracks.
British Transport Police advised people not to leave trapped trains if stranded as train tracks are "very dangerous".
Earlier this month a test train damaged power cables near Paddington forcing services to be cancelled.
Not kidding, looks like people are getting off onto the tracks before Paddington and walking through a work site out 🤔 thankfully stocked up on supplies @GWRHelp— Ross Whittaker (@RossWhittaker5) October 28, 2018
Overhead wires are down close to Paddington. Please refer to @TfLRail @GWRHelp @HeathrowExpress @nationalrailenq for latest information.— BTP Paddington (@BTPPaddington) October 28, 2018
Emergency service are on route inc @networkrail. Please do not leave trapped trains, remain on board. Rail Tracks are very dangerous.
Five trains in the section of the collapsed lines were stuck, and some had to be evacuated.
Great Western Railway (GWR) said a limited train service had started to resume to and from London Paddington, however due to train crew and train services being displaced a reduced service will operate.
Heathrow Airport services have resumed after being cancelled for much of Sunday.
Heathrow Express said it sent a rescue service to take passengers on their way to Heathrow Airport back to Paddington where a care team took them on to buses to complete their journey.
Disgruntled passengers took to social media to express concerns over delays and missing flights from Heathrow Airport.
Total @networkrail disaster trains to Paddington out again, offloaded at Reading & now herded like cattle into an all stops train to Waterloo, barely standing room (not breathing) only - total nightmare, no support or respect for passengers pic.twitter.com/1lFPQlyjv2— #Hellomynameis Jen (@JenKenward) October 28, 2018
@GWRHelp Stuck at Hayes & Harlington. Will be missing the NFL game at Wembley that we’ve been looking forward to for months. Will we be compensated for those tickets as well as our train tickets? No one here at Hayes & Harlington to help stranded passengers either. Disgraceful.— Kate Griffiths (@kgriffiths__) October 28, 2018
My husband and I are going to miss our flight back to Atlanta which means I need a new flight and accommodations. Have the airlines been notified? Is there a customer service team I can call— XandraE (@XandraE1) October 28, 2018