A train has derailed near Lewes in East Sussex, prompting a response from British Transport Police and raising concerns for passengers travelling in the area.

The incident is expected to cause disruption to local rail services, with passengers being urged to check before travelling while emergency services deal with the situation.

Details surrounding exactly what happened, including whether anyone was injured and the extent of the damage, are still emerging.

British Transport Police have been contacted for further information as enquiries into the incident continue.

This is a live and unfolding incident.