Heat-related emergency engineering work is being carried out on a track defect, discovered at Waterloo Station earlier this afternoon. As a result, four platforms at Waterloo are not currently in use. There will be disruption to services for the rest of the day.
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Tens of thousands of rail passengers are facing mass train cancelations every day at Southern because of ongoing sickness by guards.
Wednesday afternoon's weather for the east of the region
Wednesday afternoon's weather for the west of the region