Rail services on a busy line in the South East are being cancelled this weekend after a train carrying 150 people derailed in East Sussex.
Two passengers suffered serious injuries and 18 others were also hurt when three carriages of the train came off the tracks near Lewes on Thursday. Police have since said none of the casualties had life-threatening injuries.
Rail Accident Investigation Branch (RAIB) inspectors are at the scene gathering evidence, examining infrastructure and reviewing CCTV, signalling and train data.
The derailment was followed by another incident in Essex on Friday, when a Greater Anglia train came off the tracks near Wickford.
Train operator Southern Rail said trains between London Victoria and Eastbourne will be cancelled this weekend as the line between Haywards Heath and Lewes has been closed indefinitely in both directions.
Southern says Cooksbridge and Plumpton will also not be served all weekend, with rail replacement buses operating.
Eastbourne is expected to get a bumper number of visitors this weekend when the seaside town hosts its popular Airbourne air show.
The rail company has advised people to travel to Eastbourne along the coast via Brighton.
It has also urged commuters planning to travel on Monday to check for updates on its website on Sunday evening.