Ethekwini Municipality said on Tuesday that there was an interruption in water supply in the south and west of Durban.
In a statement, the municipality said that the interruption is due to two major burst pipes on separate trunk mains supplying the Chatsworth 2 reservoir.
It added that due to burst pipes, the reservoir emptied on Monday night and affected the supply of water to all areas supplied by this reservoir.
Repairs on both trunk mains commenced on Tuesday morning, and aims to be completed by midnight.
Water supply to the following areas are affected until the repairs are complete: Nagina, Luganda, Intake Road, St Wendolins, Washington Heights, Klaarwater, Demat and Marianhill.
Parts of the following areas are also affected: Shallcross, Westcliff, Chatsworth, Woodhurst and Marianridge
The municipality has apologised for the inconvenience caused.