Two train derailments in the UK within a single day have prompted an official investigation, according to the rail chief. The first incident occurred on a regional line, causing minor delays and no injuries. The second derailment, on a mainline track, led to a temporary closure of the route. Officials have not yet released details on the causes of either incident. A formal inquiry has been initiated to examine safety protocols and operational procedures. The rail authority is expected to provide further updates in the coming days. Passengers have been advised to check for service disruptions and alternative travel options. The incidents have raised concerns about rail safety across the country. Authorities are reviewing emergency response measures and maintenance schedules. No serious injuries have been reported in either case. The rail network remains under close monitoring as the investigation continues.