Traffic delays are expected in Southampton tomorrow morning as Belco staff work to repair an underground cable fault.Rush hour commuters will be subject to traffic lights on Middle Road, between Waterlot Inn and Heron Bay Primary School.Said a Belco spokeswoman: “Work was scheduled for completion this evening but due to an unexpected delay, reinstatement of the road cannot be completed until tomorrow.“During the morning rush, motorists are advised to allow extra travel time and to divert to South Road if possible.“Belco apologises for the inconvenience as crews work to make essential cable repairs.”