A passenger reports that a train derailment near Lewes in East Sussex involves a sudden, violent jolt, after which people and items were thrown around inside the carriage. The account describes the incident in terms of a rapid jolt followed by widespread disruption.

Context is that the derailment is being investigated, and eyewitness descriptions are part of how authorities and media establish what happened during the incident. However, the available coverage provided here is limited to one outlet and one eyewitness perspective, offering little additional detail on timings, the cause, the extent of damage, or the number of injuries. As a result, the differing angles across outlets cannot be fully assessed from these excerpts.