Johor Bahru residents have questioned why water tankers were not sent out after a water treatment plant stopped operations following a power failure. (Ranhill SAJ Facebook pic)

JOHOR BAHRU: Hundreds of thousands of consumers here and in Pasir Gudang have suffered a serious unplanned water disruption for nearly 24 hours.

Water supply was disrupted from last night after the Sultan Iskandar treatment plant stopped operations following a power failure. Residents woke up this morning to dry taps.

In an emailed statement this morning, Ranhill Syarikat Air Johor said Tenaga Nasional was working to restore power, with water supply to follow later. At 2pm, the company said the power problem had been rectified and water supply would be restored fully in stages.