A number of services are due to be cancelled from 9.30pm tonight following a strained day on the railway lines.
It comes after a person was hit by a train between Balham and Clapham Junction earlier today, causing network-wide disruption and misery for passengers.
In a statement on it’s Twitter account, the operator added it had already been struggling to cope with demand, due to a lack of staff.
‘Unfortunately, some of our train crew are unavailable due to Covid-19 effects or the need to self-isolate due to increasing activations of track and trace across the UK in recent weeks,’ Southern said.
Lines in the capital have since been re-opened following today’s earlier incident between Balham and Clapham Junction.