Full rail services have yet to resume on the Tonbridge to Hastings line in Sussex following further ground movement at one of the landslip repair sites.
Work to repair landslips at Battle and Stonegate were completed on time to allow those section of line to reopen on 3 February but additional repairs were needed at Whattlington near Robertsbridge.
Network Rail had hoped to fully reopen the whole line on 3 March but the repair work at Whatlington had failed to halt the ground movement.
“Despite extensive surveying and expert work we were disappointed that the ground around the landslip moved again,” said Network Rail route managing director for Kent Fiona Taylor. “This area is still not safe and we have to undertake more detailed in depth ground investigations to determine why this happened.
“We are putting everything into determining these causes and what works we have to do to make this stretch of line and the embankment safe for trains to run on.”