Train passengers across southern England warned of ‘major disruption’ for rest of day Train services across southern England are being disrupted by a fault with a radio system. National Rail Enquiries said the issue relates to how train drivers and signallers communicate. It warned passengers that services may be delayed by up to 45 minutes or cancelled, and “major disruption is expected until the end of the day”. The affected operators are CrossCountry , Gatwick Express , Great Western Railway , London Overground, Southern, South Western Railway (SWR) and Thameslink. The incident was reported shortly before 9am on Thursday. SWR warned that services across its entire network “may be cancelled, delayed by up to 90 minutes or revised”. It went on: “Our operations and engineering teams are working with signallers to find and fix the fault.…