Residents and motorists in Balzan could only watch in disgust after roadworks accidentally led to hundreds of litres of sewage flooding Valley Road.

The untreated waste formed a six-inch deep stream that started near the Lija roundabout and ran all the way to the bottom of the Balzan stretch of Valley Road.

Shop owners and residents told Times of Malta the outflow started at around 2pm and only subsided at around 4pm.

The stream saw the front facades of shops and houses sprayed in excrement and used toilet paper. The stench was nauseating.

The Infrastructure Ministry noted this afternoon that Drainage Section employees went on site to inspect the damage and confirmed that the flooding was not the result of works on the National Flood Relief Project.