A gang of around 40 people attacked United Utilities engineers with "bricks and abuse".
The engineers were called to fix a fire hydrant in Huyton on Monday which had been deliberately tampered with. It left people on Bruton Road without water on one of the hottest days of the year.
A gang of around 40 people deliberately set off a fire hydrant in the area, according to United Utilities. The sudden loss of large volumes of water resulted in some homes in the area, on one of the hottest nights on record, having no water, or it was discoloured when they ran the tap.
