Travel woe as signalling problems cause train delays in Croydon

Multiple train services to and from Croydon have been disrupted this afternoon due to a signalling problem at Purley Southern, Thameslink and Gatwick Express services are expected to be disrupted throughout the afternoon while engineers deal with the issue.
⚠ Delays between East Croydon and Gatwick Airport due to a signalling problem in the #Purley area ⚠— Southern (@SouthernRailUK) June 3, 2016Gatwick Express services are expected to be disrupted until 4pm.Earlier today, train