India, May 30 -- Passengers who were travelling to Heathrow Airport faced significant disruption after a burst water main caused extensive flooding and signalling problems, and it temporarily brought key rail services to a standstill. The incident affected both the Heathrow Express and the Elizabeth Line. These two are the busiest transport links that connect Heathrow Airport with central London. The flooding damaged signalling equipment near the airport, forcing operators to suspend services and leaving thousands of travellers scrambling for alternative transport options.

National Rail later confirmed that all lines serving Heathrow terminals had reopened and that train services were operating normally again. According to officials, the...