Multiple UK news outlets report widespread rail disruption following a power outage affecting train services. The reports say trains are grounded or operating with severe delays as the outage disrupts normal electricity supply used by the railway system. Passengers are described as facing continued disruption over at least part of a second day, with disruption expected to last longer than initially anticipated. Outlets also indicate that the full impact is still being assessed, and that recovery efforts are ongoing, meaning further delays and cancellations are possible. The reporting focuses on the practical effects for travellers, including suspended services, disruption to planned journeys, and uncertainty about when services will return to normal timetables. While details of the exact cause and the specific locations affected are not consistently provided across the brief summaries, all sources agree that the outage triggers significant service interruptions and that passengers should expect ongoing disruption rather than immediate restoration.