A TRESPASSER has caused severe delays between Worthing and Littlehampton train services.

All lines have been blocked and disruption is expected until 7pm tonight. Railway staff and the British Transport Police are currently attending to the incident.

Southern Railway tweeted shortly after 5pm, saying: "Due to a trespasser on the railway between Worthing and Littlehampton all lines are blocked.

"Services are currently at a stand in the Arundel, Angmering and Littlehampton areas.

"Services are currently unable to run between Horsham and Barnham and between Worthing and Littlehampton.

"The power to the lines in the area has been switched off to allow the British Transport Police and Network Rail response staff to safely attend."