Works on a busy road in Southampton which has been closed for three weeks have been delayed - with no reopening date currently set.

The start of work to repair a landslip on St Denys Road were delayed for almost a year, and now the discovery of "potentially live unknown cables" have meant it has been delayed.

Currently, the road is closed eastbound between Thomas Lewis Way and Aberdeen Road, and is causing delays during busy periods.

READ MORE: 'Unsafe' landslip outside man's front door not fixed for months

A spokesperson for Southampton City Council said: "The works have been progressing well and as planned. We have, however, been informed by Network Rail that during their work to secure the area they have identified many deep uncharted services.

"Network Rail has confirmed that this additional work will delay their progress by days or weeks, and will delay the re-opening of the road to traffic."

READ MORE: St Denys Road to shut for three weeks for bridge repair

SSEN first diverted an electric cable and then handed over works to National Rail on October 14.

The repairs were expected to be finished by October 27.